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State
Connected Sewer Service Areas
State of Connecticut —
This data was created through the modification of an existing sewer service dataset from the CT Office of Policy and Management (OPM), in addition to sewer data from... -
State
Soils All Soils
State of Connecticut —
This data set is a digital soil survey and generally is the mostdetailed level of soil geographic data developed by the NationalCooperative Soil Survey. The... -
State
EPCRA Tier 2 Facilities
State of Connecticut —
Submission of Tier II form is required under Section 312 of the Emergency Planning and Community Right-to-Know Act of 1986 (EPCRA). The purpose of this form is to... -
State
Air Quality Maintenance Area Carbon Monoxide
State of Oregon —
This polygon layer contains a spatial representation of geographic areas that are designated as Air Quality Maintenance Areas and Nonattainment Areas for the criteria... -
State
Oregon Land and Water Conservation Fund (LWCF) 6F Boundaries
State of Oregon —
Approximate spatial location of current LWCF 6f boundaries in Oregon. Oregon Parks and Recreation Department (OPRD) has made significant efforts to ensure the... -
State
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... -
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
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
12-digit HU (Subwatershed) 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
Public Land Survey No DLC
State of Oregon —
This data layer is an element of the Oregon GIS Framework. This 1994 theme displays the Public Land Survey System of Oregon without the donation land claim areas. It... -
State
2020 Census Block Groups
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
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
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... -
State
Aquifer Protection Area
State of Connecticut —
See full Data Guide here. Aquifer Protection Areas Set is a 1:24,000-scale, polygon feature-based layer that includes all Preliminary (Level B) and Final (Level A)... -
State
Legislative State Route Names Active
State of Connecticut —
This dataset contains data that occurs after a given year end snapshot. This data is georeferenced to the latest snapshot, but contains the approved changes to these... -
State
Local Historic District
State of Connecticut —
The boundaries of the district polygons are both modified and unmodified pre-existing polygons provided by NPS and SHPO, as well as new, previously unmapped... -
State
Soils Parent Material Name
State of Connecticut —
Parent material name is a term for the general physical, chemical, and mineralogical composition of the unconsolidated material, mineral or organic, in which the soil...