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Federal
A dataset of scanned historical well and geophysical logs from 229 counties in Texas, 1918โ2020 (ver. 2.1, September 2025)
Department of the Interior —
An extensive archive containing more than 15,000 historical (1918โ2020) geophysical logs collected in conjunction with studies done by various entities and more than... -
Federal
Basic (BAS) data file (model grid, active model cells, and hydraulic-head values) for the Central Valley Hydrologic Model (CVHM)
Department of the Interior —
This digital dataset defines the model grid, active model cells in the 10 model layers, and hydraulic-head values in the 10 model layers used to initiate the... -
Federal
Alluvial Boundary of California's Central Valley
Department of the Interior —
This digital dataset defines the extent of the alluvial deposits in the Central Valley of California and encompasses the contiguous Sacramento, San Joaquin, and... -
Federal
Monthly Diversions from the Surface-Water Network of the Central Valley Hydrologic Model (CVHM)
Department of the Interior —
This digital dataset contains the monthly diversions from the surface-water network for the Central Valley Hydrologic Model (CVHM). The Central Valley encompasses an... -
Federal
Stream-gage locations where streamflow gains/losses were quantified along the Central Valley surface-water network
Department of the Interior —
This digital dataset contains the name and location for the diversions from the surface-water network for the Central Valley Hydrologic Model (CVHM). The Central... -
Federal
Northwestern Pond Turtle Survey Data in Northern California Forest Streams, 2021-2022
Department of the Interior —
These data are from joint visual encounter and environmental DNA (eDNA) surveys conducted for northwestern pond turtles (Actinemys marmorata) in streams on privately-... -
Federal
Data from in-situ landslide monitoring, Trinity County, California
Department of the Interior —
We performed hourly monitoring of conditions at the Two Towers landslide located in northern California near the town of Zenia. Monitored conditions included... -
Federal
Data sets for: Sampling for Per- and Polyfluoroalkyl Substances (PFAS) by the Groundwater Ambient Monitoring and Assessment Priority Basin Project (GAMA-PBP) (2019-2021)
Department of the Interior —
The U.S. Geological Survey Groundwater Ambient Monitoring and Assessment-Priority Basin Project (USGS GAMA-PBP) collected samples to be analyzed for per-and... -
Federal
Groundwater-withdrawal data from the Coastal Lowlands Aquifer System in parts of Texas, Louisiana, Mississippi, Alabama, and Florida, 1925โ2018
Department of the Interior —
This data release contains compiled historical groundwater-withdrawal data for the Coastal Lowlands aquifer system in Texas, Louisiana, Mississippi, Alabama, and... -
Federal
Percent Coarse in wells in 15 meter increments and Texture Model Percent Coarse at Lattice Points for the Central Valley from Faunt (2009)
Department of the Interior —
This digital dataset contains the percentage of coarse-grained deposits in wells in 15 meter increments and the percentage of coarse-grained deposits in texture model... -
Federal
Foothill Yellow-Legged Frog (Rana boylii) Monitoring and Assessment Data from the Trinity River, California (2013-2017)
Department of the Interior —
A key objective of the Trinity River Restoration Program (TRRP) is maintaining and enhancing other wildlife populations through the restoration initiatives. For... -
Federal
Russian River Integrated Hydrologic Model (RRIHM): Watershed Soils
Department of the Interior —
This data release is the Soil Survey Geographic (SSURGO) databases covering Mendocino County, Eastern Part and Southwestern Part of Trinity County, and Sonoma County... -
Federal
Monthly Diversions from the Surface Water Network of the Central Valley Hydrologic Model Version 2 (CVHM2)
Department of the Interior —
This digital dataset contains the monthly diversions from the surface water network in the updated Central Valley Hydrologic Model (CVHM2) for water years 1922-2019.... -
Federal
Spatial Provinces and Domains of the Central Valley for Textural Analysis
Department of the Interior —
This digital dataset contains the 9 major areas used to subdivide the Central Valley for the interpolation of the percentage of coarse-grained deposits into the... -
Federal
Surface-Water Network for the Central Valley Hydrologic Model (CVHM)
Department of the Interior —
This digital dataset contains the surface-water network for the Central Valley Hydrologic Model (CVHM). The Central Valley encompasses an approximate 50,000-square-... -
Federal
Spring 1961 water table of California's Central Valley (from Williamson and others, 1989)
Department of the Interior —
This digital dataset defines the spring 1961 water-table altitude for the California's Central Valley. It was used to initiate the water-level altitudes for the upper... -
Federal
California volcano locations, threat rank and hazard zones
Department of the Interior —
The California volcano locations, threat rank and hazard zones data release contains two shapefiles for download or use as a web map service. The California Volcanic... -
Federal
Data for Per- and Polyfluoroalkyl Substances (PFAS) in groundwater samples collected by the California Groundwater Ambient Monitoring and Assessment Priority Basin Project, 2019-2023
Department of the Interior —
The California Groundwater Ambient Monitoring and Assessment Program Priority Basin Project (GAMA-PBP) analyzed for per-and polyfluoroalkyl substances (PFAS) in... -
Federal
Water-balance subregions (WBSs), soil types, and virtual crops for the five land-use time-frames used in the Central Valley Hydrologic Model (CVHM)
Department of the Interior —
This digital dataset defines the model grid, water-balance subregions (WBSs), soil types, and virtual crops for the five land-use time-frames in the transient... -
Federal
Northwestern pond turtle survey data in northern California forest streams (2021)
Department of the Interior —
These data are from joint visual encounter and environmental DNA (eDNA) surveys conducted for northwestern pond turtles (Actinemys marmorata) in streams on privately-...