Interactive Maps

MODFLOW is the USGS's three-dimensional (3D) finite-difference groundwater model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions.

SPARROW (SPAtially-Referenced Regression On Watershed attributes), is watershed based and designed for use in predicting long-term average values of water characteristics, such as concentrations and amounts of selected constituents that are delivered to downstream receiving waters.

Monthly water level network map

Aquatic invertebrates are a key component of freshwater ecosystems, and an understanding of aquatic invertebrate taxonomy is central to freshwater science. The North American Aquatic Macroinvertebrate Digital Reference Collection (NAAMDRC) was created by the USGS Aquatic Experimental Lab (AXL) to provide users with high-quality digital microscopy photographs.

An online graphical data tool provides annual summaries of nutrient and sediment concentrations and loads and streamflow information for 106 sites monitored as part of the USGS National Water-Quality Network for Streams and Rivers.

Interactive photograph viewer used to see changes to Willow Creek Reservoir. Includes 5 cameras. Best viewing starts after September 17, 2016.

New York Sandy Supplemental Mapping Priorities and Plans for Integrated Ocean and Coastal Mapping Sandy Coordination

The GLRI Edge-of-Field Monitoring project focuses on identifying and reducing agricultural sources of excess nutrients which can threaten the health of the Great Lakes. This geonarrative details the basics of edge-of-field monitoring (EOF), explores EOF applications, shows USGS is working collaboratively with our partners, and discusses how EOF can improve conservation efforts.

This is a data graphing utility that allows the user to build graphs of data from selected USGS stations. Select the station, the type of graph, the parameter(s) to plot, and the starting and ending dates for the graph.

The GAP/LANDFIRE National Terrestrial Ecosystems represents a highly thematically detailed land cover map of the U.S. This dataset is produced by the U.S. Geological Survey in collaboration with the LANDFIRE Program.  The spatial data layer was created using Landsat satellite imagery and a detailed vegetation and land use classification system.

The GAP Species Viewer provides nation-wide range maps and distribution models for amphibians, birds, mammals, and reptiles occurring in the continental U.S., Alaska, Hawaii, Puerto Rico, and U.S. Virgin Islands. These kinds of maps and data are fundamental to assessing patterns of species richness and planning for the management of the nation's biological diversity.

The Hazards Data Distribution System (HDDSExplorer) is an event-based interface that provides a single point-of-entry for access to remotely sensed imagery and other geospatial datasets as they become available during a response.