Maps

GIS Data

USGS is a primary source of geographic information system (GIS) data. Our data and information is presented in spatial and geographic formats, including The National Map, Earth Explorer, GloVIS, LandsatLook, and much more. 

Filter Total Items: 142
Date published: July 18, 2017

Estimating Drought Streamflow Probabilities for Virginia Streams

Maximum likelihood logistic regression is used to estimate drought probabilities for selected Virginia rivers and streams. Hydrologic drought streamflow probabilities for summer months are provided as functions of streamflows during the previous winter months. This application allows the display and query of these drought streamflow probabilities for Virginia streams.

Date published: July 18, 2017

GIS-based landscape analysis to identify sources of endocrine disrupting chemicals

De facto wastewater reuse from Wastewater Treatment Facilities (WWTF) has the potential to contribute unregulated Endocrine Disrupting Chemicals. To visualize the typical contributions of treated effluent into Shenandoah River watershed streams, an ArcGIS model of WWTFs, NHDPlus Version 2 (USGS and EPA 2012) stream networks, and USGS Streamgages across the Shenandoah River watershed was developed.

Date published: June 6, 2017

Long Island Depth to Water Viewer 2010

USGS collects groundwater data at varying measurement frequencies to monitor the hydrologic conditions on Long Island, New York. Each year during April and May, the USGS conducts a synoptic survey of water levels to define the spatial distribution of the water table and potentiometric surfaces within the three main water-bearing units underlying Long Island.

Date published: June 5, 2017

Long Island Depth to Water Viewer 2013

USGS collects groundwater data at varying measurement frequencies to monitor the hydrologic conditions on Long Island, New York. Each year during April and May, the USGS conducts a synoptic survey of water levels to define the spatial distribution of the water table and potentiometric surfaces within the three main water-bearing units underlying Long Island.

Date published: June 5, 2017

Groundwater Conditions on Long Island, New York in 2010

USGS online mapper for water-table altitude, and potentiometric surface of the Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, NY, in 2010.

Date published: June 5, 2017

Groundwater Conditions on Long Island, New York in 2013

USGS online mapper for water-table altitude, and potentiometric surface of the Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, NY, in 2013.

Date published: June 4, 2017

Long Island Water Districts

Long Island Water District Areas

Date published: June 3, 2017

Long Island 2010 Fresh Groundwater Use

Long Island 2010 Fresh Groundwater Use

Date published: May 26, 2017

Data from Earthquake-Induced Landslide Hazards for a M7.0 Scenario Earthquake on the Hayward Fault

The seismic-landslide probability map covers the counties of Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Santa Cruz, Solano, and Sonoma. The slope failures are triggered by a hypothetical earthquake with a moment magnitude of 7.0 occurring on April 18, 2018, at 4:18 p.m. on the Hayward Fault in the east bay part of California’s San Francisco Bay region.

Attribution: Natural Hazards
Date published: May 22, 2017

West Virginia Real-Time Precipitation Network

This interactive map shows current and cumulative rainfall total for precipitation sites in West Virginia.  Map provides real-time precipitation radar image to overlay from National Weather Service.

Date published: May 18, 2017

Virginia Real-Time Precipitation Network

This interactive map shows current and cumulative rainfall total for precipitation sites in Virginia.  Map provides real-time precipitation radar image to overlay from National Weather Service. 

Date published: May 17, 2017

StreamStats for Colorado

The map-based user interface can be used to delineate drainage areas, get basin characteristics and estimates of flow statistics, and more. 

Funding partners: Colorado Department of Transportation and Colorado Water Conservation Board