National Geospatial-Intelligence Agency
NGA Campus East, headquarters of the agency; the building features trapezoidal windows, color-coded interior sections, and is bisected by an atrium that is large enough to hold the Statue of Liberty
|Formed||October 1, 1996(as the National Imagery and Mapping Agency)|
|Jurisdiction||U.S. Department of Defense|
|Headquarters||Fort Belvoir, Virginia, U.S.|
|Motto||"Know the Earth... Show the Way... Understand the World"|
|Annual budget||Classified (at least $4.9 billion, as of 2013)|
|Parent agency||Department of Defense|
The National Geospatial-Intelligence Agency (NGA) is a combat support agency under the United States Department of Defense and a member of the United States Intelligence Community, with the primary mission of collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national security. NGA was known as the National Imagery and Mapping Agency (NIMA) from 1996 to 2003.
NGA headquarters, also known as NGA Campus East or NCE, is located at Fort Belvoir North Area in Springfield, Virginia. The agency also operates major facilities in the St. Louis, Missouri area (referred to as NGA Campus West or NCW), as well as support and liaison offices worldwide. The NGA headquarters, at 2.3 million square feet (214,000 m2), is the third-largest government building in the Washington metropolitan area after The Pentagon and the Ronald Reagan Building.
In addition to using GEOINT for U.S. military and intelligence efforts, NGA provides assistance during natural and man-made disasters, aids in security planning for major events such as the Olympic Games, and gathers data on climate change.
On February 22, 2010, Secretary of Defense Robert Gates announced that Letitia Long would become director later that year, becoming the first woman to head one of the Intelligence Community component agencies. Long was at the time deputy director of the DIA.
In September 2018, NGA researchers released a high resolution terrain map (detail down to the size of a car, and less in some areas) of Antarctica, named the "Reference Elevation Model of Antarctica" (REMA).
U.S. mapping and charting efforts remained relatively unchanged until World War I, when aerial photography became a major contributor to battlefield intelligence. Using stereo viewers, photo-interpreters reviewed thousands of images. Many of these were of the same target at different angles and times, giving rise to what became modern imagery analysis and mapmaking.
Engineer Reproduction Plant (ERP)
The Engineer Reproduction Plant was the Army Corps of Engineers's first attempt to centralize mapping production, printing, and distribution.[when?] It was located on the grounds of the Army War College in Washington, D.C. Previously, topographic mapping had largely been a function of individual field engineer units using field surveying techniques or copying existing or captured products. In addition, ERP assumed the "supervision and maintenance" of the War Department Map Collection, effective April 1, 1939.
Army Map Service (AMS) / U.S. Army Topographic Command (USATC)
With the advent of the Second World War aviation, field surveys began giving way to photogrammetry, photo interpretation, and geodesy. During wartime, it became increasingly possible to compile maps with minimal field work. Out of this emerged AMS, which absorbed the existing ERP in May 1942. It was located at the Dalecarlia Site (including buildings now named for John C. Frémont and Charles H. Ruth) on MacArthur Blvd., just outside Washington, D.C., in Montgomery County, Maryland, and adjacent to the Dalecarlia Reservoir. AMS was designated as an Engineer field activity, effective July 1, 1942, by General Order 22, OCE, June 19, 1942. The Army Map Service also combined many of the Army's remaining geographic intelligence organizations and the Engineer Technical Intelligence Division. AMS was redesignated the U.S. Army Topographic Command (USATC) on September 1, 1968, and continued as an independent organization until 1972, when it was merged into the new Defense Mapping Agency (DMA) and redesignated as the DMA Topographic Center (DMATC) (see below).
Aeronautical Chart Plant (ACP)
After the war, as airplane capacity and range improved, the need for charts grew. The Army Air Corps established its map unit, which was renamed ACP in 1943 and was located in St. Louis, Missouri. ACP was known as the U.S. Air Force Aeronautical Chart and Information Center (ACIC) from 1952 to 1972 (See DMAAC below).
National Photographic Interpretation Center (NPIC)
Shortly before leaving office in January 1961, President Dwight D. Eisenhower authorized the creation of the National Photographic Interpretation Center, a joint project of the CIA and US DoD. NPIC was a component of the CIA's Directorate of Science and Technology (DDS&T) and its primary function was imagery analysis. NPIC became part of the National Imagery and Mapping Agency (now NGA) in 1996.
Cuban Missile Crisis
NPIC first identified the Soviet Union's basing of missiles in Cuba in 1962. By exploiting images from U-2 overflights and film from canisters ejected by orbiting Corona (satellite)s, NPIC analysts developed the information necessary to inform U.S. policymakers and influence operations during the Cuban Missile Crisis. Their analysis garnered worldwide attention when the Kennedy Administration declassified and made public a portion of the images depicting the Soviet missiles on Cuban soil; Adlai Stevenson presented the images to the United Nations Security Council on October 25, 1962.
Directors of NPIC
|Director||Term of office|
|Arthur C. Lundahl||May 1953 – July 1973|
|John J. Hicks||July 1973 – May 1978|
|Brigadier Gen. Rutledge P. Hazzard||June 1978 – February 1984|
|Robert M. Huffstutler||Feb 1984 – Jan 1988|
|Frank J. Ruocco||February 1988 – February 1991|
|Leo A. Hazlewood||February 1991 – September 1993|
|Nancy E. Bone||October 1993 – September 1996|
Defense Mapping Agency (DMA)
The Defense Mapping Agency was created on January 1, 1972, to consolidate all U.S. military mapping activities. DMA's "birth certificate", DoD Directive 5105.40, resulted from a formerly classified Presidential directive, "Organization and Management of the U.S. Foreign Intelligence Community" (November 5, 1971), which directed the consolidation of mapping functions previously dispersed among the military services. DMA became operational on July 1, 1972, pursuant to General Order 3, DMA (June 16, 1972). On October 1, 1996, DMA was folded into the National Imagery and Mapping Agency – which later became NGA.
DMA was first headquartered at the United States Naval Observatory in Washington, D.C, then at Falls Church, Virginia. Its mostly civilian workforce was concentrated at production sites in Bethesda, Maryland, Northern Virginia, and St. Louis, Missouri. DMA was formed from the Mapping, Charting, and Geodesy Division, Defense Intelligence Agency (DIA), and from various mapping-related organizations of the military services.
- DMA Hydrographic Center (DMAHC)
DMAHC was formed in 1972 when the Navy's Hydrographic Office split its two components: The charting component was attached to DMAHC, and the survey component moved to the Naval Oceanographic Office, Bay St. Louis, Mississippi, on the grounds of what is now the Stennis Space Center. DMAHC was responsible for creating terrestrial maps of coastal areas worldwide and hydrographic charts for DoD. DMAHC was initially located in Suitland, Maryland, but later relocated to Brookmont (Bethesda), Maryland.
- DMA Topographic Center (DMATC)
DMATC was located in Brookmont (Bethesda), Maryland. It was responsible for creating topographic maps worldwide for DoD. DMATC's location in Bethesda, Maryland is the former site of NGA's headquarters.
DMAHC and DMATC eventually merged to form DMAHTC, with offices in Brookmont (Bethesda), Maryland.
- DMA Aerospace Center (DMAAC)
DMAAC originated with the U.S. Air Force's Aeronautical Chart and Information Center (ACIC) and was located in St. Louis, Missouri.
National Imagery and Mapping Agency (NIMA)
NIMA was established on October 1, 1996, by the National Defense Authorization Act for Fiscal Year 1997. The creation of NIMA followed more than a year of study, debate, and planning by the defense, intelligence, and policy-making communities (as well as the Congress) and continuing consultations with customer organizations. The creation of NIMA centralized responsibility for imagery and mapping.
NIMA combined the DMA, the Central Imagery Office (CIO), and the Defense Dissemination Program Office (DDPO) in their entirety, and the mission and functions of the NPIC. Also merged into NIMA were the imagery exploitation, dissemination, and processing elements of the Defense Intelligence Agency, National Reconnaissance Office, and the Defense Airborne Reconnaissance Office.
NIMA's creation was clouded by the natural reluctance of cultures to merge and the fear that their respective missions—mapping in support of defense activities versus intelligence production, principally in support of national policymakers—would be subordinated, each to the other.
2005 BRAC and Impact on NGA
As a part of the 2005 Base Realignment and Closure (BRAC) process, all major Washington, D.C.–area NGA facilities, including those in Bethesda, Maryland; Reston, Virginia; and Washington, D.C., would be consolidated at a new facility at the Fort Belvoir proving grounds. This new facility, later known as NCE, houses several thousand people and is situated on the former Engineer Proving Ground site near Fort Belvoir. NGA facilities in St. Louis were not affected by the 2005 BRAC process.
The cost of the new center, as of March 2009, was expected to be $2.4 billion. The center's campus is approximately 2,400,000 square feet (220,000 m2) and was completed in September 2011.
Next NGA West
NGA is currently constructing a new facility in St. Louis, Missouri, Next NGA West, at a cost of $1.7 billion. The facility is expected to hold 3,000 employees and open by 2025. St. Louis' city legislature is currently reconsidering legislation to surround Next NGA West with a protection zone that would bar certain businesses, such as gas stations, hazardous material companies, and foreign government-supported enterprises, from building around the site for security purposes.
Executive Leadership Team
NGA is headed by a director, currently Navy Vice Adm. Robert D. Sharp; the director is followed in precedence by the deputy director and chief of staff, currently Brett Markham. The holders of these three offices comprise NGA's executive leadership team.
Chief of Staff
While NGA's Director and Deputy Director oversee the agency as a whole, the Chief of Staff is tasked with overseeing NGA's executive support staff, administrative services, logistics, personnel security, human resources, employee training and development, corporate communications, and congressional engagement.
Directorates and directorate leaders
NGA is split into various directorates led by directors (D/XX) and associate deputy directors (ADD/XX) with "XX" standing in for each direcorate's two-letter designation. Known directorates and leadership figures include but are not limited to the:
- Analysis Directorate, containing the Director of Analytic Operations (D/AO) and Associate Deputy Director for Operational Engagement (ADD/AE) and led by a director
- Source Operations & Management Directorate (S or "Source" Directorate), led by the Director of the Source Operations & Management Directorate or Director of Source Operations
- Enterprise Operations Directorate (E or "Enterprise" Directorate), led by the Director of the Enterprise Operations Directorate
- IT Services Directorate
- Plans and Programs Directorate
- Research Directorate
- Security and Installation Operations Directorate (SI)
- Human Development Directorate (HD)
- Financial Management Directorate (FM)
- Unnamed "NGA contracting directorate"
- Acquisitions Directorate
- Unnamed "A Directorate" (possibly Acquisitions or Analysis)
- Unnamed "P Directorate" (possibly Plans and Programs or former Analysis and Production Directorate (see below))
An Analysis and Production Directorate (P or "Production" Directorate) existed in 2011, although NGA presently has a Directorate for Analysis which may be a replacement or separated portion of the Analysis and Production Directorate.
The deputy associate director of operations directly oversees NGA Operations Center (itself led by a director and deputy director) the Office of NGA Defense, the Office of Expeditionary Operations, and NGA leadership at the three National Reconnaissance Office Aerospace Data facilities.
Other internal groups and leaders
NGA contains NGA Support Teams (NST), which work with directorates, are detailed internationally, deploy with warfighters, or liaise with service branches. Multiple NGA Command NSTs also exist. NGA's western operations, such as the construction of Next NGA West campus in St. Louis, Missouri, are headed by the NGA west executive (who can concurrently serve in other leadership roles). There is also an NGA Equality Executive. Other organizations present in NGA, which may or may not be components of directorates, include:
- NGA Operations Center
- Office of Expeditionary Operations
- Office of NGA Defense (OND)
- Office of the Chief Information Officer (OCIO), led by NGA's Chief Information Officer
- Office of the Inspector General (OIG), led by NGA's Inspector General (currently Cardell Richardson, Sr.)
- Records Service Office
- National Geospatial-Intelligence Committee (GEOCOM), containing subcommittees
- National Geospatial-Intelligence College (NGC), led by a director
- GEOINT Enterprise Office, led by a director and organized into branches
- Office of Geomatics
- Aeronautical Navigation Office
- Office of Corporate Assessment and Program Evaluation (CAPE)
- Office of Corporate Communications, led by a director
- Office of Strategic Operations-Performance
- NGA Cyber Security Operations Cell (CSOC), led by a director and organized into teams
- NGA Police
- NGA History Department
- Office of Maritime Safety
- Office of Contract Services
- Office of Future Warfare Systems (MRF)
- Office of Diversity Management and Equal Employment Opportunity, led by a director
- Custom Media Team (XCMS), containing the Tailored Media support team and CMGS (Custom Media Generation System) team
- GPS Division
- Historical Imagery Division/Historical Imagery team
- Volunteered Geographic Information (VGI) Team, community led by NGA containing screened non-NGA users/institutions
- Office of Ventures and Innovation
- NGA Research, led by a director
- Enterprise Innovation Office (EIO)
- Office of Strategic Operations
- Office of Geography
- NGA Outpost Valley (NOV), office of NGA in Silicon Valley
- Office of Congressional and Intergovernmental Affairs
- Personnel Security Division, led by a chief
- Meteorological Operations Center
- Office of General Counsel (OGC)
- Records and Declassification Program Office
- FOIA/Privacy Act Program Office
NGA employs professionals in aeronautical analysis, cartography, geospatial analysis, imagery analysis, marine analysis, the physical sciences, geodesy, computer and telecommunication engineering, and photogrammetry, as well as those in the national security and law enforcement fields.
List of NIMA / NGA Directors
This table lists all Directors of the NIMA and NGA and their term of office. The agency transitioned from NIMA to NGA during Lieutenant General King's directorship.
|Portrait||Name||Took office||Left office||Term length|
Joseph J. Dantone
|~October 1996||March 1998||~1 year, 151 days|
James C. King
|March 1998||September 2001||~3 years, 184 days|
|3||James Clapper†||September 2001||~July 7, 2006||~4 years, 309 days|
Robert B. Murrett
|~July 7, 2006||August 2010||~4 years, 25 days|
|5||Letitia Long||August 2010||October 3, 2014||~4 years, 63 days|
|6||Robert Cardillo||October 3, 2014||February 7, 2019||4 years, 127 days|
Robert D. Sharp
|February 7, 2019||Incumbent||2 years, 173 days|
- † - Although General Clapper preferred the use of his military rank, he was in fact a member of the Defense Intelligence Senior Executive Service (DISES) during his term as Director of NGA, as he had retired from active duty as the director of Defense Intelligence Agency in 1995. Clapper was the first civilian to head NIMA / NGA.
Civilian, Department of Defense, and Intelligence Community activities
- Osama bin Laden compound raid: NGA was integral in helping the Department of Defense and the U.S. Intelligence Community pinpoint the compound in Abbotabad, Pakistan where Osama bin Laden hid for several years and to plan the raid that killed him.
- 9/11 aftermath: After the September 11, 2001 attacks, NIMA partnered with the U.S. Geological Survey to survey the World Trade Center site and determine the extent of the destruction.
- Keyhole investment: NGA contributed approximately 25% of In-Q-Tel's funding of Keyhole Inc, whose Earth-viewing software became Google Earth.
- Hurricane Katrina: NGA supported Hurricane Katrina relief efforts by "providing geospatial information about the affected areas based on imagery from commercial and U.S. government satellites, and from airborne platforms, to the Federal Emergency Management Agency (FEMA) and other government agencies. NGA's Earth website is a central source of these efforts.
- Microsoft partnership: Microsoft Corp. and NGA have signed a letter of understanding to advance the design and delivery of geospatial information applications to customers. NGA will continue to use the Microsoft Virtual Earth platform (as it did for Katrina relief) to provide geospatial support for humanitarian, peacekeeping, and national-security efforts. Virtual Earth is a set of online mapping and search services that deliver imagery through an API.
- Google and GeoEye: In 2008 NGA partnered with Google and GeoEye. Google would be allowed to use GeoEye spy satellite imagery with reduced resolution for Google Earth.
- Open source software on GitHub: April 2014 NGA became the first intelligence agency to open-source software on GitHub. NGA Director Letitia Long talks about NGA's GitHub initiative and the first offering, GeoQ, at the GEOINT Symposium. Her comments start at 40 minutes and 40 seconds from her GEOINT 2014 conference speech. NGA open sources software packages under their GitHub organizational account.
- After the 2019 creation of the United States Space Force, NGA began working with the USSF "to provide geospatial intelligence to support and identify future needs of the service," establishing a new support team (NST) embedded at USSF headquarters.
NIMA / NGA has been involved in several controversies.
- India tested a nuclear weapon in 1998 that reportedly took the United States by surprise. Due to budget cuts in defense spending after the end of the Cold War (see Peace dividend), the Intelligence Community was forced to reevaluate the allocation of its limited resources.
- In 1999, NIMA reportedly provided NATO war-planners with incorrect maps which did not reflect that the Chinese Embassy in Belgrade had moved locations, which some[who?] have argued was the cause of the accidental NATO bombing of the Chinese embassy in Belgrade. The Central Intelligence Agency countered this criticism by saying this overstates the importance of the map itself in the analytic process. Maps of urban areas will be out-of-date the day after they are published, but what is important is having accurate databases.[better source needed]
- On Jan. 17, 2013, USS Guardian, a mine countermeasures ship, was grounded on the Tubbataha Reef in the southern Philippines. While it was determined that the NGA had provided an inaccurate chart that was off by as much as 8 nautical miles (15 km; 9.2 mi), the Navy primarily faulted the ship's crew, specifically the commanding officer, the executive officer and two junior officers that were standing watch at the time of the grounding, as they had failed to adhere to prudent, safe, and sound navigation principles. The crew relied solely on the inaccurate Digital Nautical Chart (DNC) during the planning and execution of the navigation plan and failed to appropriately cross-reference additional charts and utilize visual cues.
- From 2013 to 2018, NGA designated the latitude and longitude coordinates of a private residence as a default location for Pretoria, South Africa, causing the digital-mapping website MaxMind to set it as the location of over one million IP addresses, which in turn caused people searching for missing phones and other electronics (as well as other people trying to track down IP addresses in Pretoria and police officers attempting to track criminals) to show up at the residence. The issue was eventually resolved following a private investigation and a request to both NGA and MaxMind that the default location be changed.
Credit Union (NCE)
Constellation Federal Credit Union (CFCU) was chartered in 1944 during the Army Map Service era. It continued to serve all successive legacy agencies' employees and their families with a “once a member, always a member” policy until CFCU merged into Northwest Federal Credit Union in March 2019. 
In 2011, upon consolidating most Washington DC metro area NGA employees to NCE, the Belvoir Federal Credit Union (BFCU) became the on-site credit union serving NCE-based personnel. In 2016, BFCU merged with Pentagon Federal Credit Union.
Credit Union (NCW)
Arsenal Credit Union (ACU) was founded in August 1948 as Aero Chart Credit Union, organized to serve employees of the Aeronautical Chart Plant (ACP), located at the St. Louis Arsenal. The name changed to ACU in 1952, a nod to the St. Louis site's Civil War-era use as an arsenal.
FOIA OIG Cases
Case 09-034 2009 Presidential Inauguration bombing remarks
A heavily redacted May 2009 document detailing NGA OIG Case 09-034 (Computer Misuse Case Number A580051·09) states that an individual, whose identity is redacted but contextually must be an NGA employee, "was overhead discussing plans to potentially detonate an explosive device at the 2009 Presidential Inauguration." While the seriousness of these claims is not commented on, the individual received "a Letter of Reprimand" and counseling from management officials; no other punishment is listed. The incident was included in a memo to the chief of NGA's Personnel Security Division.
Case 09-041 child pornography charge
Case 09-041 comprises documents showing the indictment, guilty plea, and sentencing of Joel W. Stephens in on one count of felony possession of child pornography. Stephens possessed the illegal images in 2009 and pleaded guilty in 2010; he was then sentenced to 37 months in prison and, after his prison term, lifelong supervised release. No affiliation between Stephens and the NGA is mentioned, although the case was investigated by NGA's inspector general and Stephens is stated to reside in St. Louis, Missouri, home to several NGA west buildings.
NGA headquarters' atrium
- Geographic Information System (GIS)
- GEOnet Names Server
- Geospatial engineering
- Geospatial Information Officer
- GIS use in NGA
- Imagery intelligence
- Remote sensing
- Satellite imagery
- Small Sats
- "BRAC side effect: Greener buildings". May 13, 2011.
- "NGA Campus East Fact Sheet" (PDF). Archived from the original (PDF) on February 21, 2014.
- "Photo gallery: An alternative geography". projects.washingtonpost.com.
- "About NGA". National Geospatial-Intelligence Agency. Retrieved May 23, 2021.
- Gellman, Barton; Greg Miller (August 29, 2013). "U.S. spy network's successes, failures and objectives detailed in 'black budget' summary". The Washington Post. Retrieved August 29, 2013.
- "GSP - GSP". www.esa.int.
- "Rear Adm. Robert Sharp USN confirmed as new NGA director". intelligencecommunitynews.com. December 28, 2018. Retrieved February 8, 2019.
- "10 U.S. Code § 441 - Establishment". LII / Legal Information Institute.
- Serbu, Jared (September 27, 2011). "Geospatial intelligence HQ is now DC's 3rd largest federal office building". Federal News Radio. Retrieved March 19, 2016.
- "About NGA". Archived from the original on October 6, 2014.
- Perez, Lisbeth (June 3, 2021). "NGA Crunching Climate Change Data for National Security Decision-Making". MeriTalk. Retrieved June 30, 2021.
- "Gates names first woman to head major intel agency". FederalTimes.com. February 23, 2010. Retrieved February 25, 2010.
Letitia Long, currently the Defense Intelligence Agency's deputy director, will take over NGA this summer, Gates said.
- "Woman takes charge of major intelligence agency for the first time". CNN. August 9, 2010. Retrieved August 11, 2010.
- "Reference Elevation Model of Antarctica – Polar Geospatial Center". www.pgc.umn.edu.
- Stirone, Shannon (September 7, 2018). "New Antarctica Map Is Like 'Putting on Glasses for the First Time and Seeing 20/20' – A high resolution terrain map of Earth's frozen continent will help researchers better track changes on the ice as the planet warms". The New York Times. Retrieved September 9, 2018.
- "Thirty ... and thriving". Central Intelligence Agency. December 1, 1991. p. 1ff. Archived from the original on March 8, 2012. Retrieved May 30, 2010.
- "Jan. 18, 1961: National Photographic Interpretation Center". www.nga.mil.
- NGA History Archived March 20, 2009, at the Wayback Machine, nga.mil
- Nixon, Richard (November 5, 1971). "Memorandum, Subject: Organization and Management of the U.S. Foreign Intelligence Community" (PDF). gwu.edu. Retrieved August 12, 2007.
- "Defense Mapping Agency". NGA.mil.
- U.S. National Archives. "Guide to Federal Records: Records of the Defense Mapping Agency (DMA)". National Archives and Records Administration (NARA). Retrieved August 12, 2007.
- "National Defense Authorization Act for Fiscal Year 1997" (PDF). September 23, 1996. Retrieved February 10, 2008.
- Report of the Independent Commission on NIMA - December 2000 Archived September 19, 2009, at the Wayback Machine, nga.mil
- "National Defense Authorization Act for Fiscal Year 2004" (PDF). November 24, 2003. Retrieved February 10, 2008., gpo.gov
- "NGA: September-October 2003 State of the Agency" (PDF). Archived from the original (PDF) on September 19, 2009.
- New Campus East Archived November 5, 2009, at the Wayback Machine, nga.mil
- Davenport, Christian, "Projects' Costs Are Rising", The Washington Post, March 31, 2009, p. B4
- Bernthal, Jeff (June 7, 2021). "Progress visible at Next NGA West site in north St. Louis". fox2now.com. Retrieved June 29, 2021.
- Ryan, Monica (June 29, 2021). "'Protection' district being reconsidered around NGA site". fox2now.com. Retrieved June 30, 2021.
- "Brett Markham, Chief of Staff". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 9, 2021.
- "Pathfinder Vol. 14 No. 2" (PDF). NGA Pathfinder. https://www.nga.mil/history/NGA_Pathfinder_Archive.html: National Geospatial-Intelligence Agency. 2016. Retrieved July 11, 2021.
- "Investigative Summaries for 26 National Geospatial-Intelligence Agency (NGA) Office of Inspector General (OIG) investigative cases, 2008-2010" (PDF). Government Attic. governmentattic.org. Retrieved July 11, 2021.
- Management of Hard Copy Mapping Products in the National Geospatial-Intelligence Agency Inspection Report (PDF) (Report). National Archives and Records Administration. June 2011. Retrieved July 9, 2021.
- "NGA appoints agency's new west executive, deputy associate director for operations". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 9, 2021.
- "Inspector General". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 11, 2021.
- "Pathfinder Vol. 14 No. 3" (PDF). NGA Pathfinder. https://www.nga.mil/history/NGA_Pathfinder_Archive.html: National Geospatial-Intelligence Agency. 2016. Retrieved July 9, 2021.
- "DNI HAINES STATEMENT ON THE PRESIDENT'S INTENT TO NOMINATE DR. STACEY DIXON AS PDDNI" (Press release). ODNI. April 21, 2021. Retrieved July 11, 2021.
- "National Geospatial-Intelligence Agency (NGA) Legal Guide: Legal Considerations on the Proper Collection and Use of Social Media Information, 2012" (PDF). Government Attic. governmentattic.org. Retrieved July 11, 2021.
- "National Geospatial-Intelligence Agency (NGA) Instruction (NI) 1000.7R1: NGA Instruction for Personal Relationships in the Workplace, 2004" (PDF). Government Attic. governmentattic.org. Retrieved July 11, 2021.
- "National Geospatial-Intelligence Agency (NGIA) Office of Inspector General (OIG) Assessment of Management and Performance Challenges for FY 2007 to 2013 Agency Financial Reports" (PDF). Government Attic. governmentattic.org. Retrieved July 11, 2021.
- "National Geospatial-Intelligence Agency (NGA) response to a Congressional request for "agency"-specific information on climate change, 2013" (PDF). Government Attic. governmentattic.org. Retrieved July 11, 2021.
- "National Geospatial-Intelligence Agency (NGA) Records Storage Study, Final Results, 2006" (PDF). Government Attic. governmentattic.org. Retrieved July 11, 2021.
- "Pathfinder Vol. 15 No. 1" (PDF). NGA Pathfinder. https://www.nga.mil/history/NGA_Pathfinder_Archive.html: National Geospatial-Intelligence Agency. 2017. Retrieved July 9, 2021.
- "Pathfinder Vol. 14 No. 4" (PDF). NGA Pathfinder. https://www.nga.mil/history/NGA_Pathfinder_Archive.html: National Geospatial-Intelligence Agency. 2016. Retrieved July 9, 2021.
- "Custom Media Team". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 11, 2021.
- Deputy Under Secretary of Defense for Acquisition and Technology (March 2, 2007). "Format Changes for the Defense Acquisition Executive Summary (DAES) Reviews" (PDF). acq.osd.mil. Defense Department. Retrieved July 11, 2021.
- "GEOINT Standards & Architecture Expert - TS/SCI". appone.com. Appone. Retrieved July 11, 2021.
- "GPS and Earth Orientation Products". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 11, 2021.
- "Historical Maps and Charts". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 11, 2021.
- "NOME". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 11, 2021.
- Wilson, Samuel (July 24, 2017). "NGA Office of Ventures and Innovation explained". National Geospatial-Intelligence Agency. Retrieved July 11, 2021.
- Uhler, Carling (February 9, 2016). "Amidst a blizzard, NGA workforce maintains facilities, mission support". NG Office of Corporate Communications. Retrieved July 11, 2021.
- Ambinder, Marc (May 5, 2011). "The Little-Known Agency That Helped Kill Bin Laden". The Atlantic Monthly.
- "Osama bin Laden Compound Raid". National Geospatial-Intelligence Agency. Retrieved July 27, 2017. This article incorporates text from this source, which is in the public domain.
- "Oakland emails give another glimpse into the Google-Military-Surveillance Complex". PandoDaily. March 7, 2014.
- Geospatial Intelligence Aids Hurricane Recovery Efforts Archived September 19, 2009, at the Wayback Machine, nga.mil
- Microsoft and NGA Announce Strategic Alliance Archived June 17, 2006, at the Wayback Machine, microsoft.com
- NGA releases open source code on GitHub, FierceGovernmentIT, April 07, 2014
- "» GEOINT 2013* – Keynote Letitia A. Long - USGIF official video portal". web.archive.org. July 30, 2017.
- "National Geospatial-Intelligence Agency". GitHub.
- Sparks, Carolyn (March 4, 2021). "NGA Director Sharp inducts newest Space Force officers". nga.mil. Retrieved May 22, 2021.
- "Secretive map agency opens its doors", CNN.com, December 13, 2002
- DCI Statement on the Belgrade Chinese Embassy Bombing to a House Permanent Select Committee on Intelligence Open Hearing, 22 July 1999, CIA
- "USS Guardian Grounding Investigation Results Released". U.S. Navy. Retrieved June 20, 2013.
- Hill, Kashmir (January 9, 2019). "How Cartographers for the U.S. Military Inadvertently Created a House of Horrors in South Africa". Gizmodo. Retrieved January 10, 2019.
- "Constellation Federal Credit Union - Miscellaneous - CFCU to NCE". constellationfcu.org. Archived from the original on July 29, 2013. Retrieved December 3, 2012.
- "Northwest Federal completes Constellation Federal Credit Union merger". WTOP.com. July 5, 2019. Retrieved August 2, 2020.
- "PenFed Credit Union merging with Belvoir Federal". WTOP.com. March 31, 2016. Retrieved August 2, 2020.
- "Arsenal Credit Union - Arsenal Credit Union - Our Roots and Structure". Arsenalcu.org. Archived from the original on November 30, 2012. Retrieved November 27, 2012.
- ""Solving the Mystery of the Arsenal Guns" by Randy R. McGuire". civilwarstlouis.com. Retrieved November 27, 2012.
- "FOIA Request Logs". nga.mil. National Geospatial-Intelligence Agency. Retrieved July 11, 2021.
- Ambinder, Marc (May 5, 2011). "The Little-Known Agency That Helped Kill Bin Laden". The Atlantic. Explains NGA's capabilities.
- Online repository of issues of NGA's magazine NGA Pathfinder: 
- Media related to National Geospatial-Intelligence Agency at Wikimedia Commons
- Official website
- GEOnet Names Server (GNS) - Database of foreign geographic feature names. Worldwide coverage excluding the United States and Antarctica, containing approximately 3.93 million features with 5.45 million names, and their coordinates
- Center for Geospatial Intelligence : University of Missouri - Columbia research center focused on GeoINT
- JP 2-03, Geospatial Intelligence Support to Joint Operations, 31 October 2012
- Commission Report on the National Imagery and Mapping Agency
- GeoIntelligence: A trade publication covering the uses of spatial technologies for national defense and homeland security by organizations such as NGA
- Ensor, David (December 13, 2002). "Secretive map agency opens its doors". CNN.
- DMA Receives Hammer Award, 26 January 1996
- Agency Provides More Than Just Maps
- The Center for Intelligence and Security Studies trains new analysts in Intelligence Analysis