Data Access Tools | U.S. Geological Survey Official websites use .gov .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS lock ( or means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. Data Access Tools Products Data Maps Multimedia Gallery Publications Web Tools Alert and Notification Services APIs Data Access Tools Data Analysis Tools Data Visualizations Digital Repositories Interactive Maps All Web Tools Software U.S Board on Geographic Names The National Map USGS Library USGS Store Park Passes Data Access Tools include APIs and search and query forms. Filter Total Items: 271 April 1, 2026 Land Treatment Digital Library Land Treatment Digital Library The Land Treatment Digital Library (LTDL) was created by the U.S. Geological Survey to catalog legacy land treatment information on Bureau of Land Management lands in the western United States. The LTDL currently houses thousands of treatments from BLM lands across 10 states. By Ecosystems Mission Area Land Management Research Program Forest and Rangeland Ecosystem Science Center March 25, 2026 Western Migrations Western Migrations The Western Migrations web application uses an interactive map to foster exploration of detailed migration routes, stopovers, and winter ranges across the West. Filter the data by species, state, specific herds, or land ownership, including Federal and Tribal lands, to focus on the areas and animals most relevant to your work or interests. By Ecosystems Mission Area Cooperative Research Units Species Management Research Program Northern Rocky Mountain Science Center March 16, 2026 Land Treatment Exploration Tool Land Treatment Exploration Tool The Land Treatment Exploration Tool is designed for resource managers to use when planning land treatments. The tool provides useful summaries of environmental characteristics of planned treatment areas and facilitates adaptive management practices by comparing those characteristics to other similar treatments within a specified distance or area of interest. Provisional Software. By Ecosystems Mission Area Forest and Rangeland Ecosystem Science Center January 29, 2026 Water Data for the Nation (WDFN) Water Data for the Nation (WDFN) Water Data for the Nation (WDFN) is the home for USGS’s modernization of public delivery of water data. By Water Resources Mission Area Alaska Science Center Arizona Water Science Center California Water Science Center Caribbean-Florida Water Science Center (CFWSC) Central Midwest Water Science Center Central Plains Water Science Center Colorado Water Science Center Dakota Water Science Center Idaho Water Science Center Lower Mississippi-Gulf Water Science Center Maryland-Delaware-D.C. Water Science Center Nevada Water Science Center New England Water Science Center New Jersey Water Science Center New Mexico Water Science Center New York Water Science Center Ohio-Kentucky-Indiana Water Science Center Oklahoma-Texas Water Science Center Oregon Water Science Center Pacific Islands Water Science Center Pennsylvania Water Science Center South Atlantic Water Science Center (SAWSC) Upper Midwest Water Science Center Utah Water Science Center Virginia and West Virginia Water Science Center Washington Water Science Center Wyoming-Montana Water Science Center Hydrologic Instrumentation Facility (HIF) January 29, 2026 USGS Water Data APIs USGS Water Data APIs This site is the home for modernized access to USGS water data in machine-readable formats via REST APIs, a common type of web service programs use to search and download data. These services provide USGS water data, ranging from continuous measurements of streamflow to information about individual USGS sites and more. By Water Resources Mission Area Alaska Science Center Arizona Water Science Center California Water Science Center Caribbean-Florida Water Science Center (CFWSC) Central Midwest Water Science Center Central Plains Water Science Center Colorado Water Science Center Dakota Water Science Center Idaho Water Science Center Lower Mississippi-Gulf Water Science Center Maryland-Delaware-D.C. Water Science Center Nevada Water Science Center New England Water Science Center New Jersey Water Science Center New Mexico Water Science Center New York Water Science Center Ohio-Kentucky-Indiana Water Science Center Oklahoma-Texas Water Science Center Oregon Water Science Center Pacific Islands Water Science Center Pennsylvania Water Science Center South Atlantic Water Science Center (SAWSC) Upper Midwest Water Science Center Utah Water Science Center Virginia and West Virginia Water Science Center Washington Water Science Center Wyoming-Montana Water Science Center December 11, 2025 Energy Geochemistry Database Explorer Energy Geochemistry Database Explorer This interactive web application allows you to explore, filter, and download subsets of the Energy Geochemistry Database (EGDB). The EGDB contains analytical data for samples collected by the Energy Resources Program (ERP) to develop an understanding of the physical and geochemical processes responsible for hydrocarbon formation. By Central Energy Resources Science Center Petroleum Geochemistry Research Laboratory September 3, 2025 Groundwater Modeling Comparison Groundwater Modeling Comparison The Central Valley has four hydrologic regions, from north to south: the Sacramento Valley, the Delta & Eastside Streams, the San Joaquin Basin, and the Tulare Basin. Water flows from Sacramento Valley, Tulare Basin, and the San Joaquin Basin, into the Delta & Eastside Streams through the Central Valley's only natural outlet, the Carquinez Strait, on its way to the Pacific Ocean. By California Water Science Center September 3, 2025 Central Valley Hydrologic Model Version 2 Central Valley Hydrologic Model Version 2 The Central Valley Hydrologic Model version 2 (CVHM2) is an integrated surface–subsurface hydrologic model, representing the major components of the hydrologic system of California’s Central Valley. This new decision support tool is useful for testing water management strategies in California's Central Valley. By California Water Science Center July 29, 2025 USGS-DOE Cooperative Studies and Groundwater Monitoring in Nevada USGS-DOE Cooperative Studies and Groundwater Monitoring in Nevada The USGS-DOE Cooperative Studies and Groundwater Monitoring in Nevada website provides an interactive and easy-to-use interface to access groundwater levels, groundwater withdrawal, and water-temperature data for wells on and adjacent to the NNSS. By Nevada Water Science Center July 28, 2025 USGS-NNSS Regional Groundwater Explorer USGS-NNSS Regional Groundwater Explorer The USGS-NNSS Regional Groundwater Explorer web application is a user-friendly and interactive interface that provides access to a comprehensive database of groundwater levels, hydrologic conditions, construction, and descriptive narratives for wells on and adjacent to the NNSS. By Nevada Water Science Center July 9, 2025 Land Application of Drilling Fluids in Oklahoma: Data Viewer Land Application of Drilling Fluids in Oklahoma: Data Viewer This ArcGIS Online Dashboard provides an interactive platform to view drilling waste land application data in Oklahoma. By Geology, Energy & Minerals Science Center New England Water Science Center Oklahoma-Texas Water Science Center June 30, 2025 Transboundary Kootenai River Basin Water Quality Portal Transboundary Kootenai River Basin Water Quality Portal Explore water-quality data collected from over 3,000 sites within the Kootenai River Basin. By Wyoming-Montana Water Science Center Was this page helpful?