A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView version 2.1. TopoView let's you access and download maps free of charge from the USGS's Historical Topographic Map Collection, published between 1884 and 2006.
Resources:
An Introduction to TopoView (version 1.0)
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
Geoinformatics Technology Optimization (GTO) Project
Solar Energy
Using Jupyter Notebooks to tell data stories and create reproducible workflows
Wind Energy
The National Geologic Map Database (NGMDB)
United States Large-Scale Solar Photovoltaic Database (ver. 2.0, August 2024)
United States Wind Turbine Database
Geology of the Hardeeville NW Quadrangle and parts of the Brighton and Pineland Quadrangles, Jasper County, South Carolina
Quaternary sediment thickness and bedrock topography of the glaciated United States east of the Rocky Mountains
Geologic map of the Point Lay quadrangle, Alaska
Color shaded-relief and surface-classification maps of the Fish Creek Area, Harrison Bay Quadrangle, Northern Alaska
Geologic map of the Utukok River quadrangle, Alaska
Geologic map of the Lookout Ridge quadrangle, Alaska
Geologic map of the Ikpikpuk River quadrangle, Alaska
Geologic map of the Umiat quadrangle, Alaska
A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView version 2.1. TopoView let's you access and download maps free of charge from the USGS's Historical Topographic Map Collection, published between 1884 and 2006.
Resources:
An Introduction to TopoView (version 1.0)
Lesson 9b: Accessing USGS Historical Maps through TopoView - This video demonstrates the basic function of TopoView, a USGS product allowing access to USGS historical topographic maps for no charge.
Lesson 9b: Accessing USGS Historical Maps through TopoView - This video demonstrates the basic function of TopoView, a USGS product allowing access to USGS historical topographic maps for no charge.
A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView to access maps from the USGS historical topographic map collection.
A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView to access maps from the USGS historical topographic map collection.
A tutorial by USGS scientist Chris Garrity demonstrating how to use the WindFarm Mapping tool.
A tutorial by USGS scientist Chris Garrity demonstrating how to use the WindFarm Mapping tool.
Assessment of undiscovered oil and gas resources of the North Chukchi Basin, outer continental shelf of the Chukchi and East Siberian Seas, Arctic Ocean, 2023
Georectified polygon database of ground-mounted large-scale solar photovoltaic sites in the United States
Database of the "North America Tapestry of Time and Terrain" map
Assessment of undiscovered gas resources in Upper Devonian to Lower Cretaceous strata of the western North Slope, Alaska, 2021
Environmental data associated with sites infected with white-nose syndrome (WNS) before October 2011 in North America
Assessment of undiscovered oil and gas resources in the Central North Slope of Alaska, 2020
A continuously updated, geospatially rectified database of utility-scale wind turbines in the United States
Geology and assessment of undiscovered oil and gas resources of the Amerasia Basin Province, 2008
Assessment of undiscovered oil and gas resources in the Cretaceous Nanushuk and Torok Formations, Alaska North Slope, and summary of resource potential of the National Petroleum Reserve in Alaska, 2017
The Carolina Sandhills: Quaternary eolian sand sheets and dunes along the updip margin of the Atlantic Coastal Plain province, southeastern United States
Onshore industrial wind turbine locations for the United States up to March 2014
The geology of Burnsville Cove, Bath and Highland Counties, Virginia
U.S. Wind Turbine Database (USWTDB) Viewer
The U.S. Wind Turbine Database (USWTDB) Viewer lets you visualize, inspect, interact, and download the most current onshore and offshore turbine locations in the United States, corresponding facility information, and turbine technical specifications through a dynamic web application. The Viewer provides direct access to data and information stored within the USWTDB.
Earth MRI Acquisitions Map
Earth MRI began in 2019 and is a partnership between the USGS and State Geological Surveys to acquire new geologic maps, geophysical surveys, and LiDAR data to better understand the fundamental geologic framework of areas across the Nation with potential for hosting critical mineral resources.
Science and Products
Geoinformatics Technology Optimization (GTO) Project
Solar Energy
Using Jupyter Notebooks to tell data stories and create reproducible workflows
Wind Energy
The National Geologic Map Database (NGMDB)
United States Large-Scale Solar Photovoltaic Database (ver. 2.0, August 2024)
United States Wind Turbine Database
Geology of the Hardeeville NW Quadrangle and parts of the Brighton and Pineland Quadrangles, Jasper County, South Carolina
Quaternary sediment thickness and bedrock topography of the glaciated United States east of the Rocky Mountains
Geologic map of the Point Lay quadrangle, Alaska
Color shaded-relief and surface-classification maps of the Fish Creek Area, Harrison Bay Quadrangle, Northern Alaska
Geologic map of the Utukok River quadrangle, Alaska
Geologic map of the Lookout Ridge quadrangle, Alaska
Geologic map of the Ikpikpuk River quadrangle, Alaska
Geologic map of the Umiat quadrangle, Alaska
A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView version 2.1. TopoView let's you access and download maps free of charge from the USGS's Historical Topographic Map Collection, published between 1884 and 2006.
Resources:
An Introduction to TopoView (version 1.0)
A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView version 2.1. TopoView let's you access and download maps free of charge from the USGS's Historical Topographic Map Collection, published between 1884 and 2006.
Resources:
An Introduction to TopoView (version 1.0)
Lesson 9b: Accessing USGS Historical Maps through TopoView - This video demonstrates the basic function of TopoView, a USGS product allowing access to USGS historical topographic maps for no charge.
Lesson 9b: Accessing USGS Historical Maps through TopoView - This video demonstrates the basic function of TopoView, a USGS product allowing access to USGS historical topographic maps for no charge.
A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView to access maps from the USGS historical topographic map collection.
A tutorial by USGS scientist and topoView developer Chris Garrity demonstrating how to use topoView to access maps from the USGS historical topographic map collection.
A tutorial by USGS scientist Chris Garrity demonstrating how to use the WindFarm Mapping tool.
A tutorial by USGS scientist Chris Garrity demonstrating how to use the WindFarm Mapping tool.
Assessment of undiscovered oil and gas resources of the North Chukchi Basin, outer continental shelf of the Chukchi and East Siberian Seas, Arctic Ocean, 2023
Georectified polygon database of ground-mounted large-scale solar photovoltaic sites in the United States
Database of the "North America Tapestry of Time and Terrain" map
Assessment of undiscovered gas resources in Upper Devonian to Lower Cretaceous strata of the western North Slope, Alaska, 2021
Environmental data associated with sites infected with white-nose syndrome (WNS) before October 2011 in North America
Assessment of undiscovered oil and gas resources in the Central North Slope of Alaska, 2020
A continuously updated, geospatially rectified database of utility-scale wind turbines in the United States
Geology and assessment of undiscovered oil and gas resources of the Amerasia Basin Province, 2008
Assessment of undiscovered oil and gas resources in the Cretaceous Nanushuk and Torok Formations, Alaska North Slope, and summary of resource potential of the National Petroleum Reserve in Alaska, 2017
The Carolina Sandhills: Quaternary eolian sand sheets and dunes along the updip margin of the Atlantic Coastal Plain province, southeastern United States
Onshore industrial wind turbine locations for the United States up to March 2014
The geology of Burnsville Cove, Bath and Highland Counties, Virginia
U.S. Wind Turbine Database (USWTDB) Viewer
The U.S. Wind Turbine Database (USWTDB) Viewer lets you visualize, inspect, interact, and download the most current onshore and offshore turbine locations in the United States, corresponding facility information, and turbine technical specifications through a dynamic web application. The Viewer provides direct access to data and information stored within the USWTDB.
Earth MRI Acquisitions Map
Earth MRI began in 2019 and is a partnership between the USGS and State Geological Surveys to acquire new geologic maps, geophysical surveys, and LiDAR data to better understand the fundamental geologic framework of areas across the Nation with potential for hosting critical mineral resources.