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: 76
Screen capture of the Flood Inundation Mapper
August 10, 2017

The USGS Flood Inundation Mapping Program (FIM) partners with local communities and other government agencies to develop and validate flood inundation map libraries. Click the title above to visit the USGS FIM website and learn more about available tools. Completed projects are collected on the USGS National Flood Inundation Mapper, brought to you by the USGS Wisconsin Internet Mapping Group (WiM)

Drought probabilities (%) from February (2002) mean discharge
July 18, 2017

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.

Shenandoah municipal and industrial discharges
July 18, 2017

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.

Image of the National Water Information System Mapper for New Jersey
July 6, 2017

National Water Information System Web Mapper (NWISWeb Mapper) Provides access to water-resources data collected throughout the state of New Jersey as presented in the form of an interactive map.

Map depicting the basins covered by the Aquifer Mapper
July 6, 2017

The series of surficial aquifer studies were completed to evaluate the unconfined aquifer system of the NJ Coastal Plain for use as a potential source of water. As the demand for water in the State increases and the restrictions continue on the use of water from certain confined aquifers, withdrawals on the unconfined aquifer system are expected to increase.

image of groundwater well map for Long Island
June 6, 2017

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.

image of groundwater well map for Long Island
June 5, 2017

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.

map of groundwater conditions on Long Island in 2010
June 5, 2017

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.

map of groundwater on Long Island, NY in 2013
June 5, 2017

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.

Map of Long Island Water District areas
June 4, 2017

Long Island Water District Areas

map of Long Island 2010 Fresh Groundwater Use
June 3, 2017

Long Island 2010 Fresh Groundwater Use

National Water Information System map
June 2, 2017

This mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where surface-water, groundwater, springs, and atmospheric data has been collected.