Christopher P. Garrity
Christopher Garrity is a Supervisory Cartographer with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA. He is responsible for developing scalable, resilient, enterprise-level geospatial web applications and product/data delivery systems for a variety of groups at the USGS.
Chris has an extensive background in geospatial related technologies, specializing in the planning, architecture, development, maintenance, and support of complex geospatial driven applications for USGS stakeholders. Since joining the USGS, he has led numerous high-visibility projects in the Energy/Minerals and Core Science Systems Mission areas. He is an active leader in the USGS geospatial community, especially those interested in open-source geospatial technologies, and serves on numerous USGS and industry steering committees/communities of practice. He currently leads a geospatial team in the Geology, Energy & Minerals Science Center.
Professional Experience
Lead developer of a variety of highly visible geospatial related applications in multiple languages/protocols (JavaScript, Python, NodeJS, PHP, JSON/XML, HTML5, CSS, etc.)
Extensive experience utilizing geospatial technologies including ESRI ArcGIS Enterprise, ArcGIS APls, ArcGIS Online, open-source geospatial technologies (PostGIS, GeoServer, OpenLayers, and MapBox)
Extensive knowledge of relational database managements systems such as PostgreSOL and SOL Server
Experience developing middleware and RESTful web services with respect for end user authentication
Experience leveraging contemporary technologies like Cloud, Al/ML, and 3D modeling in geospatial workflows
Experience with distributed computing frameworks for big data (Kubernetes, Dask)
Extensive knowledge of design tools (Adobe Creative Suite, Blender, Figma, Sketch, lnvision)
Experience in computer vision and machine learning toolkits/technologies (OpenCV, TensorFlow, Keras)
Experience in cloud architecture (AWS) and related technologies (RDS, SageMaker, Rekognition, Textract)
Highly proficient in testing, supporting, and developing tools/scripts, and preparing technical documentation
Extensive knowledge in data governance/management related workflows, including geospatial catalog development and curation, semantics/ontologies, data curation, metadata (ISO, FGDC, Dublin Core) management and API technologies
Education and Certifications
B.S. Earth Systems Science, GISciences, George Mason University, 2001
Science and Products
Filter Total Items: 36
2010 updated assessment of undiscovered oil and gas resources of the National Petroleum Reserve in Alaska (NPRA) 2010 updated assessment of undiscovered oil and gas resources of the National Petroleum Reserve in Alaska (NPRA)
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 896 million barrels of oil (MMBO) and about 53 trillion cubic feet (TCFG) of nonassociated natural gas in conventional, undiscovered accumulations within the National Petroleum Reserve in Alaska and adjacent State waters. The estimated volume of undiscovered oil is significantly lower than...
Authors
D.W. Houseknecht, K. J. Bird, J.H. Schuenemeyer, E. D. Attanasi, C.P. Garrity, Christopher J. Schenk, Ronald R. Charpentier, R. M. Pollastro, T. A. Cook, T.R. and Klett
Assessment of undiscovered natural gas resources of the Arkoma Basin province and geologically related areas Assessment of undiscovered natural gas resources of the Arkoma Basin province and geologically related areas
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 38 trillion cubic feet (TCF) of undiscovered natural gas, 159 million barrels of natural gas liquid (MMBNGL), and no oil in accumulations of 0.5 million barrels (MMBO) or larger in the Arkoma Basin Province and related areas. More than 97 percent of the undiscovered gas occurs in continuous
Authors
David W. Houseknecht, James L. Coleman, Robert C. Milici, Christopher P. Garrity, William A. Rouse, Bryant R. Fulk, Stanley T. Paxton, Marvin M. Abbott, John L. Mars, Troy A. Cook, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Richard M. Pollastro, Geoffrey S. Ellis
Map Database for Surficial Materials in the Conterminous United States Map Database for Surficial Materials in the Conterminous United States
The Earth's bedrock is overlain in many places by a loosely compacted and mostly unconsolidated blanket of sediments in which soils commonly are developed. These sediments generally were eroded from underlying rock, and then were transported and deposited. In places, they exceed 1000 ft (330 m) in thickness. Where the sediment blanket is absent, bedrock is either exposed or has been...
Authors
David R. Soller, Marith C. Reheis, Christopher P. Garrity, D. R. Van Sistine
Database of the geologic map of North America— Adapted from the map by J.C. Reed, Jr. and others (2005) Database of the geologic map of North America— Adapted from the map by J.C. Reed, Jr. and others (2005)
Introduction The Geological Society of America's (GSA) Geologic Map of North America (Reed and others, 2005a; 1:5,000,000) shows the geology of a significantly large area of the Earth, centered on North and Central America and including the submarine geology of parts of the Atlantic and Pacific Oceans. This map is now converted to a Geographic Information System (GIS) database that...
Authors
Christopher P. Garrity, David R. Soller
Digital geologic map and GIS database of Venezuela Digital geologic map and GIS database of Venezuela
The digital geologic map and GIS database of Venezuela captures GIS compatible geologic and hydrologic data from the 'Geologic Shaded Relief Map of Venezuela,' which was released online as U.S. Geological Survey Open-File Report 2005-1038. Digital datasets and corresponding metadata files are stored in ESRI geodatabase format; accessible via ArcGIS 9.X. Feature classes in the geodatabase...
Authors
Christopher P. Garrity, Paul C. Hackley, Franco Urbani
Mapa Geologico de Venezuela a Escala 1:750,000 Mapa Geologico de Venezuela a Escala 1:750,000
Se presenta un mapa geologico digital de Venezuela sobre un fondo de relieve sombreado. Los datos geologicos e hidrologicos del norte del rio Orinoco proceden de la digitalizacion de mapas geologicos en papel a escala 1:500.000. Estos datos fueron integrados con el mapa geologico digital del Escudo de Guayana Venezolano, a su vez derivado de hojas en papel a escala 1:500.000. La...
Authors
Paul C. Hackley, Franco Urbani, Alex W. Karlsen, Christopher P. Garrity
Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska
No abstract available.
Authors
John L. Mars, Christopher P. Garrity, David W. Houseknecht, Lee Amoroso, Donald C. Meares
U.S. Geological Survey 2005 oil and gas resource assessment of the central North Slope, Alaska: Play maps and results U.S. Geological Survey 2005 oil and gas resource assessment of the central North Slope, Alaska: Play maps and results
No abstract available.
Authors
Christopher P. Garrity, David W. Houseknecht, Kenneth J. Bird, Christopher J. Potter, Thomas E. Moore, Philip H. Nelson, Christopher J. Schenk
Geologic shaded relief map of Venezuela Geologic shaded relief map of Venezuela
No abstract available.
Authors
Paul C. Hackley, Franco Urbani, Alex W. Karlsen, Christopher P. Garrity
Digital shaded-relief map of Venezuela Digital shaded-relief map of Venezuela
The digital shaded relief map of Venezuela is a composite of 3-arc-second (approximately 90-meter) elevation data, captured during the Shuttle Radar Topography Mission (SRTM) in February 2000. The SRTM, a joint project between the National Geospatial-Intelligence Agency (NGA) and the National Aeronautics and Space Administration (NASA), provides the most comprehensive international...
Authors
Christopher P. Garrity, Paul C. Hackley, Franco Urbani
U.S. Geological Survey 2002 petroleum resource assessment of the National Petroleum Reserve in Alaska (NPRA): GIS play maps U.S. Geological Survey 2002 petroleum resource assessment of the National Petroleum Reserve in Alaska (NPRA): GIS play maps
This report provides digital GIS files of maps for each of the 24 plays evaluated in the U.S. Geological Survey (USGS) 2002 petroleum resource assessment of the NPRA (Bird and Houseknecht, 2002a). These are the same maps released in pdf format by Bird and Houseknecht (2002b). The USGS released in 2002 a summary of the estimated volume of technically recoverable, undiscovered oil and
Authors
Christopher P. Garrity, David W. Houseknecht, Kenneth J. Bird
National Petroleum Reserve-Alaska (NPRA) core images and well data National Petroleum Reserve-Alaska (NPRA) core images and well data
This report contains photographic images and data from petroleum exploration wells drilled within and near the National Petroleum Reserve-Alaska (NPRA). The volume is organized into six chapters, each of which contains images and well data (including a GIS project of public domain cores) pertinent to the geology and petroleum potential of NPRA. This product is a compilation of data not...
Non-USGS Publications**
Palmer, J. F., Hoen, B., & Garrity, C. (2026). An exploratory investigation of the experience of visible wind turbines. Journal of Digital Landscape Architecture, (11), Article 537770086. https://doi.org/10.14627/537770086.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 36
2010 updated assessment of undiscovered oil and gas resources of the National Petroleum Reserve in Alaska (NPRA) 2010 updated assessment of undiscovered oil and gas resources of the National Petroleum Reserve in Alaska (NPRA)
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 896 million barrels of oil (MMBO) and about 53 trillion cubic feet (TCFG) of nonassociated natural gas in conventional, undiscovered accumulations within the National Petroleum Reserve in Alaska and adjacent State waters. The estimated volume of undiscovered oil is significantly lower than...
Authors
D.W. Houseknecht, K. J. Bird, J.H. Schuenemeyer, E. D. Attanasi, C.P. Garrity, Christopher J. Schenk, Ronald R. Charpentier, R. M. Pollastro, T. A. Cook, T.R. and Klett
Assessment of undiscovered natural gas resources of the Arkoma Basin province and geologically related areas Assessment of undiscovered natural gas resources of the Arkoma Basin province and geologically related areas
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 38 trillion cubic feet (TCF) of undiscovered natural gas, 159 million barrels of natural gas liquid (MMBNGL), and no oil in accumulations of 0.5 million barrels (MMBO) or larger in the Arkoma Basin Province and related areas. More than 97 percent of the undiscovered gas occurs in continuous
Authors
David W. Houseknecht, James L. Coleman, Robert C. Milici, Christopher P. Garrity, William A. Rouse, Bryant R. Fulk, Stanley T. Paxton, Marvin M. Abbott, John L. Mars, Troy A. Cook, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Richard M. Pollastro, Geoffrey S. Ellis
Map Database for Surficial Materials in the Conterminous United States Map Database for Surficial Materials in the Conterminous United States
The Earth's bedrock is overlain in many places by a loosely compacted and mostly unconsolidated blanket of sediments in which soils commonly are developed. These sediments generally were eroded from underlying rock, and then were transported and deposited. In places, they exceed 1000 ft (330 m) in thickness. Where the sediment blanket is absent, bedrock is either exposed or has been...
Authors
David R. Soller, Marith C. Reheis, Christopher P. Garrity, D. R. Van Sistine
Database of the geologic map of North America— Adapted from the map by J.C. Reed, Jr. and others (2005) Database of the geologic map of North America— Adapted from the map by J.C. Reed, Jr. and others (2005)
Introduction The Geological Society of America's (GSA) Geologic Map of North America (Reed and others, 2005a; 1:5,000,000) shows the geology of a significantly large area of the Earth, centered on North and Central America and including the submarine geology of parts of the Atlantic and Pacific Oceans. This map is now converted to a Geographic Information System (GIS) database that...
Authors
Christopher P. Garrity, David R. Soller
Digital geologic map and GIS database of Venezuela Digital geologic map and GIS database of Venezuela
The digital geologic map and GIS database of Venezuela captures GIS compatible geologic and hydrologic data from the 'Geologic Shaded Relief Map of Venezuela,' which was released online as U.S. Geological Survey Open-File Report 2005-1038. Digital datasets and corresponding metadata files are stored in ESRI geodatabase format; accessible via ArcGIS 9.X. Feature classes in the geodatabase...
Authors
Christopher P. Garrity, Paul C. Hackley, Franco Urbani
Mapa Geologico de Venezuela a Escala 1:750,000 Mapa Geologico de Venezuela a Escala 1:750,000
Se presenta un mapa geologico digital de Venezuela sobre un fondo de relieve sombreado. Los datos geologicos e hidrologicos del norte del rio Orinoco proceden de la digitalizacion de mapas geologicos en papel a escala 1:500.000. Estos datos fueron integrados con el mapa geologico digital del Escudo de Guayana Venezolano, a su vez derivado de hojas en papel a escala 1:500.000. La...
Authors
Paul C. Hackley, Franco Urbani, Alex W. Karlsen, Christopher P. Garrity
Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska
No abstract available.
Authors
John L. Mars, Christopher P. Garrity, David W. Houseknecht, Lee Amoroso, Donald C. Meares
U.S. Geological Survey 2005 oil and gas resource assessment of the central North Slope, Alaska: Play maps and results U.S. Geological Survey 2005 oil and gas resource assessment of the central North Slope, Alaska: Play maps and results
No abstract available.
Authors
Christopher P. Garrity, David W. Houseknecht, Kenneth J. Bird, Christopher J. Potter, Thomas E. Moore, Philip H. Nelson, Christopher J. Schenk
Geologic shaded relief map of Venezuela Geologic shaded relief map of Venezuela
No abstract available.
Authors
Paul C. Hackley, Franco Urbani, Alex W. Karlsen, Christopher P. Garrity
Digital shaded-relief map of Venezuela Digital shaded-relief map of Venezuela
The digital shaded relief map of Venezuela is a composite of 3-arc-second (approximately 90-meter) elevation data, captured during the Shuttle Radar Topography Mission (SRTM) in February 2000. The SRTM, a joint project between the National Geospatial-Intelligence Agency (NGA) and the National Aeronautics and Space Administration (NASA), provides the most comprehensive international...
Authors
Christopher P. Garrity, Paul C. Hackley, Franco Urbani
U.S. Geological Survey 2002 petroleum resource assessment of the National Petroleum Reserve in Alaska (NPRA): GIS play maps U.S. Geological Survey 2002 petroleum resource assessment of the National Petroleum Reserve in Alaska (NPRA): GIS play maps
This report provides digital GIS files of maps for each of the 24 plays evaluated in the U.S. Geological Survey (USGS) 2002 petroleum resource assessment of the NPRA (Bird and Houseknecht, 2002a). These are the same maps released in pdf format by Bird and Houseknecht (2002b). The USGS released in 2002 a summary of the estimated volume of technically recoverable, undiscovered oil and
Authors
Christopher P. Garrity, David W. Houseknecht, Kenneth J. Bird
National Petroleum Reserve-Alaska (NPRA) core images and well data National Petroleum Reserve-Alaska (NPRA) core images and well data
This report contains photographic images and data from petroleum exploration wells drilled within and near the National Petroleum Reserve-Alaska (NPRA). The volume is organized into six chapters, each of which contains images and well data (including a GIS project of public domain cores) pertinent to the geology and petroleum potential of NPRA. This product is a compilation of data not...
Non-USGS Publications**
Palmer, J. F., Hoen, B., & Garrity, C. (2026). An exploratory investigation of the experience of visible wind turbines. Journal of Digital Landscape Architecture, (11), Article 537770086. https://doi.org/10.14627/537770086.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.