This magnetic anomaly map of Alaska provides a statewide view of magnetic anomalies in Alaska. This composite magnetic anomaly grid is a merge of the available, public-domain,...

305b Assessed 2014 River Lake Estuary Set: Connecticut 305b Assessed River 2014 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to...

This digital publication, GPR 2014-5, contains data produced from airborne geophysical surveys conducted in 2012 and 2013 for the East Styx survey area in the McGrath and Yentna...

Northeastern United States Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels. Use it to...

Connecticut 303(d) Impaired Waters 2020 is a subset of Connecticut 305(b) Assessed Waters 2020. If any one of the assigned designated uses is categorized as NOT Supporting, the...

The difference from projected coverage area is due to the built and natural environment near the access points. For example, building and tree downgrade the signal much like...

This feature class is a vector line feature representing the SB 379 tsunami regulatory line created in 1995 for the entire Oregon coast. This file is for GIS purposes only. This...

Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone can cause...

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 maps for...

Locations where Pickup can transfer to CapMetro Fixed Route services.

NOTE: This dataset has been retired and marked as historical-only. This dataset contains counts of unique tests and results for COVID-19. This dataset differs from...

SWI is the single point of contact in Texas for mandated reporters and the public to report allegations of abuse, neglect, or exploitation for children and vulnerable adults....

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 surface...

The Street Name Dictionary (SND) contains street names and street codes for New York City. Street names (which include names of other geographic features as well) are associated...

CTA's statutory service area is defined in the Metropolitan Transit Authority Act of 1945 (70 ILCS 3605) as being, "All territory in the County of Cook, State of Illinois, lying...

Bar Ditch - A bar ditch is a man-made, open drainage-way into which excess surface water or groundwater drained from land, storm water runoff, or floodwaters flow either...

Cook County GIS Dept map of Commissioner District 1.

Street sweeping zones by Ward and Ward Section Number. For the corresponding schedule, see https://data.cityofchicago.org/d/bbt9-ihrm. For more information about the City's...

Inputs for the publicly available EPA modeling utility MOVES (MOtor Vehicle Emissions Simulator), used to estimate air pollution emissions from mobile sources. Please contact...

As described in https://data.cityofchicago.org/stories/s/311-Dataset-Changes-12-11-2018/d7nq-5g7t, the function of this dataset was replaced by...