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State
GNIS
State of Oregon —
The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board... -
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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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Tui Chub
State of Oregon —
Oregon Fish Habitat Oregon Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by native or non-... -
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salt storage
Vermont Center for Geographic Information —
Mapping of deicing material storage facilities in the Lake Champlain Basin was conducted during the late fall and winter of 2022-23. 126 towns were initially selected... -
State
Fish Passage Barriers by Type
State of Oregon —
Fish passage barriers include both natural and artificial obstructions that either block or impede fish passage or have the potential to block or impede fish passage.... -
State
Abandoned Mine Locations
State of Oregon —
Mineral Information Layer for Oregon-Release 3 (MILO-Release 3) is a geospatial database that stores and manages information regarding Oregons mineral occurrences,... -
State
Migratory Waterfowl
State of Connecticut —
Migratory Waterfowl is a 1:24,000-scale, polygon feature-based layer that depicts the concentration areas of migratory waterfowl at specific locations within... -
State
Rainbow Trout
State of Oregon —
Oregon Fish Habitat Oregon Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by native or non-... -
State
CT House Districts
State of Connecticut —
This feature layer represents the boundaries of Connecticut's House of Representative’s districts based on the latest redistricting process following the 2020 Census.... -
State
Fault Lines
State of Oregon —
This dataset represents structural faults (at the scale of original mapping) and descriptive data and shows the location and type of faults in the state of Oregon.... -
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Dams
Vermont Center for Geographic Information —
This dataset is generated from Dam Inventory. The inventory is managed by the VT DEC's Dam Safety and Hydrology Section and contains information about Vermont's dams.... -
State
Correctional Institutions
State of Oregon —
Jails and Prisons (Correctional Institutions). The Jails and Prisons sub-layer is part of the Emergency Law Enforcement Sector and the Critical Infrastructure... -
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Radon Data
State of Oregon —
The polygons in this feature class are geologic map units assigned a radon potential rank, based on three major geologic factors: geologic materials, aerial... -
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All Public Roads
State of Oregon —
OR-Trans is a GIS road centerline dataset compiled from numerous sources of data throughout the state. Each dataset is from the road authority responsible for (or... -
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Wildlife Action Plan Research Conservation Opportunity 2025
State of Connecticut —
The 2025 Connecticut State Wildlife Action Plan conservation opportunity areas (COAs) represent locations partners can conduct actions to benefit wildlife populations... -
State
Flowline NGDA
State of Oregon —
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D... -
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Environmental Justice Block Groups 2023
State of Connecticut —
Environmental Justice 2023 Set is comprised of two layers: Environmental Justice Block Groups 2023 and Environmental Justice Distressed Municipality 2023. All Census... -
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CT Housing Data Hub - Housing Programs DOH
State of Connecticut —
This feature layer represents the number of housing units in each Connecticut municipality that qualify under state-recognized affordable housing programs, as... -
State
Surface Water Quality Lines
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...