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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... -
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.... -
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
WBDLine NGDA
State of Oregon —
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National... -
State
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... -
State
Trail Interest
State of Connecticut —
DEEP Trails Set: Trail Access Points are point features in the Statewide Trails Database that describe where trails are accessed at trail heads, state and municipal... -
State
Connecticut Railroads
State of Connecticut —
Connecticut Railroads is a 1:24,000-scale, feature-based layer that includes railroad features on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle... -
State
10-digit HU (Watershed) NGDA
State of Oregon —
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National... -
State
Trail Access
State of Connecticut —
DEEP Trails Set: Trail Access Points are point features in the Statewide Trails Database that describe where trails are accessed at trail heads, state and municipal... -
State
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... -
State
Quaternary Geology LIS Channel-Fill Deposits
State of Connecticut —
Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in... -
State
Trail Roadway
State of Connecticut —
DEEP Trails Set: Trail Access Points are point features in the Statewide Trails Database that describe where trails are accessed at trail heads, state and municipal... -
State
Connecticut Road
State of Connecticut —
Connecticut Roads and Trails is 1:24,000-scale base map data. It depicts the location of all roads and trails published on the USGS topographic quadrangle maps. For... -
State
Quaternary Geology LIS Lacustrine Fan Deposits
State of Connecticut —
Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in... -
State
Surficial Materials
State of Connecticut —
See full Data Guide here. This data layer includes the information portrayed on the Surficial Materials Map of Connecticut (Stone, J.R., Schafer, J.P., London, E.H.... -
State
Quaternary Geology
State of Connecticut —
See full Data Guide here. Quaternary Geology Feature Set is 1:24,000-scale data that illustrates the geologic features formed in Connecticut during the Quaternary... -
State
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... -
State
Bedrock Geology
State of Connecticut —
Bedrock Geology Set is a 1:50,000-scale, polygon and line feature-based layer describing the solid material that underlies the soil or other unconsolidated material... -
State
Subregional Basin Line
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...