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California Power Plants
State of California —
The power plant locations and characteristics are part of the California Energy Commission’s (CEC) California Energy Infrastructure geospatial data sets. The data is... -
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2020 Census Tracts
State of Oregon —
This data layer is an element of the Oregon GIS Framework. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and... -
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2019 California Water Quality Status Report
State of California —
The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report... -
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Lake Bathymetry Contours Lines
State of Connecticut —
See full Data Guide here. Lake Bathymetry describes the water depth for selected reservoirs, lakes, ponds, and coves in Connecticut. It includes depth contours, also... -
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California Fish Passage Assessment Database [ds69]
State of California —
The Passage Assessment Database (PAD) geospatial file contains locations of known and potential barriers to salmonid migration in California streams with additional... -
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ICEsites
State of California —
This Feature Layer Collection contains publicly shared data from Envirostor, the Department of Toxic Substances Control's Project Management Solution. The data... -
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hazardouswastesites
State of California —
This Feature Layer Collection contains publicly shared data from Envirostor, the Department of Toxic Substances Control's Project Management Solution. The data... -
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Coastal Area
State of Connecticut —
The Coastal Area layer is a 1:24,000-scale, polygon feature-based layer that includes the land and waters that lie within the Coastal Area as defined by Connecticut... -
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Community Vulnerability (BCDC 2020)
State of California —
The San Francisco Bay Conservation and Development Commission Adapting to Rising Tides Program developed a dataset to better understand community vulnerability to... -
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Salt Water Limit
State of Connecticut —
Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut. It... -
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Eelgrass Beds 93-95 Potential Polygon
State of Connecticut —
Eelgrass Beds 93-95 Set: Eelgrass Sample Points is a 1:24,000-scale, point feature-based layer that depicts the locations where eelgrass (Zostera marina) was either... -
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Connecticut Dams - Public Use
State of Connecticut —
Connecticut Dams is a 1:24,000 scale spatial data developed for use by the Dam Safety Section of the Inland Water Resources Division, Bureau of Water Protection and... -
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Surface Water Quality Polygon
State of Connecticut —
See full Data Guide here. Surface Water Quality Classifications Set: This dataset is a line and a polygon feature-based layer compiled at 1:24,000 scale that includes... -
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CA Congress Districts and Membership 2024-2026
State of California —
The 119th Congressional Districts dataset reflects boundaries from January 03, 2025 from the United States Census Bureau (USCB), and the attributes are updated every... -
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Subregional Basin Poly
State of Connecticut —
A standardized mapping of natural drainage basins in Connecticut was completed in 1981 by the Connecticut Department of Environmental Protection (DEP). This drainage... -
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Groundwater Restricted Areas
State of Oregon —
The Department’s role is to protect existing water rights by preventing excessive groundwater declines, restoring aquifer stability, and preserving aquifers with... -
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California Electric Balancing Authority Areas (Retired)
State of California —
A balancing authority is responsible for operating a transmission control area. It matches generation with load and maintains consistent electric frequency of the... -
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Coastal Boundary
State of Connecticut —
The Coastal Boundary layer is a 1:24,000-scale, polygon feature-based layer of the legal mylar-based maps adopted by the Commissioner of the Department of... -
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Coastal Area Polygon
State of Connecticut —
Coastal Area & Boundary Polygon: The Coastal Area layer is a 1:24,000-scale, polygon feature-based layer that includes the land and waters that lie within the... -
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2020 Census Block
State of Oregon —
This data layer is an element of the Oregon GIS Framework. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and...