-
State
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... -
State
Shellfish
State of Connecticut —
Shellfish polygons were digitized from hand drawn polygons representing hardclam, softclam, and oyster beds produced by the Department of Agriculture from their... -
State
City Limit (polygon)
State of Arkansas —
Data available online through the Arkansas Spatial Data Infrastructure (http://gis.arkansas.gov). Arkansas Cities: This data set contains all of the city limit... -
State
Oregon ZIP Codes
State of Oregon —
US Postal Service Zone Improvement Plan (ZIP) Codes are used throughout the United States to improve mail delivery. There are 479 unique 5-digit ZIP Codes in Oregon... -
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... -
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... -
State
Modoc Sucker
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
Electric Transmission Lines
State of Oregon —
This data layer is an element of the Oregon GIS Framework. Electric transmission lines as imported from DLG and traced from orthoimagery and lidar surface models.... -
State
Soils Farmland Classification
State of Connecticut —
Farmland classification identifies map units as prime farmland, farmland of statewide importance, farmland of local importance, or unique farmland. It identifies the... -
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
Solar Radiation - Monthly and Annual Normals
State of Oregon —
Monthly 30-year "normal" dataset covering the conterminous U.S., averaged over the climatological period 1991-2020. Contains spatially gridded average annual daily... -
State
River Lamprey
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
ArchaeologyGrid
State of Connecticut —
This layer denotes the presence of archaeology sites utilizing a grid based on the U.S. National Grid (10,000 m) divided into nine sections per 10,000 m grid. The red... -
State
National Forest Boundaries
State of Oregon —
An area encompassing all the National Forest System lands administered by an administrative unit. The area encompasses private lands, other governmental agency lands,... -
State
Landfills
Vermont Center for Geographic Information —
This data set defines both current and historic landfills/waste disposal storage sites for the State of Vermont. Historic landfills were identified with the... -
State
CT Congressional Districts
State of Connecticut —
This feature layer represents the boundaries of Connecticut's congressional districts based on the latest redistricting process following the 2020 Census. More... -
State
Umpqua Pikeminnow
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
Connecticut Parcels 2009
State of Connecticut —
See full Data Guide here. Connecticut Parcels for Protected Open Space Mapping is a polygon feature-based layer that includes basic parcel-level information for some... -
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
Warmouth (lake)
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-...