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State
Critical Habitats
State of Connecticut —
See full Data Guide here.Connecticut Critical Habitats is a polygon feature-based layer with a resolution of +/- 10 meters that represents significant natural... -
State
Level III Ecoregions
State of Oregon —
Ecoregions denote areas of general similarity in ecosystems and in the type quality, and quantity of environmental resources. The ecoregions shown here have been... -
State
Dam Facilities
State of Oregon —
This data layer is an element of the Oregon GIS Framework. Large dams are defined by a dam height >= 10 feet and storage of >= 9.2 acre feet. These larger dams... -
State
Cold Water Habitat Sites
State of Connecticut —
Cold water habitat was determined using available fish and water temperature data collected by the CT DEEP Monitoring and Assessment and Inland Fisheries Programs.... -
State
Waterbody - Small Scale
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
State
Oregon Ecoregions
State of Oregon —
This data layer is an element of the Oregon GIS Framework. Ecoregions denote areas of general similarity in ecosystems and in the type quality, and quantity of... -
State
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... -
State
Oregon Channel Migration
State of Oregon —
Channel migration is the natural process by which streams move laterally over time. It is typically a gradual phenomenon that works over many years to effect... -
State
Point Event
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
State
Cold Water Supporting Drainage Basin
State of Connecticut —
Cold water habitat was determined using available fish and water temperature data collected by the CT DEEP Monitoring and Assessment and Inland Fisheries Programs.... -
State
Flowline - Small Scale (HI, PR, VI, Pacific Territories)
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
State
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... -
State
Waterbody - Small Scale (HI, PR, VI, Pacific Territories)
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
State
Protected Open Space Phase1
State of Connecticut —
See full Data Guide here. This layer includes polygon features that depict protected open space for towns of the Protected Open Space Mapping (POSM) project, which is... -
State
Flowline - Small Scale
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
State
Environmental Sensitivity Index 2002 Polygon
State of Connecticut —
Environmental Sensitivity Index 2002 Set: This data set contains vector lines representing the shoreline and coastal habitats of Connecticut classified according to... -
State
Waterbody - Large Scale
State of Oregon —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's...