Search datasets
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This data set represents the area of bedrock geology types in square meters compiled for every catchment of NHDPlus for the conterminous United States. The source data set is the "Geology of the...
Search relevance: 1.00 | Views last month: 19 | Catalog Last Checked: September 10, 2026 at 09:15 PM -
This tabular data set represents the mean annual natural groundwater recharge, in millimeters, compiled for every MRB_E2RF1catchment of selected Major River Basins (MRBs, Crawford and others,...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: September 10, 2026 at 10:40 PM -
Groundwater samples were collected and analyzed from 1,015 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program and the...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: September 10, 2026 at 08:58 PM -
This tabular data set represents the mean base-flow index expressed as a percent, compiled for every catchment of MRB_E2RF1 catchments of Major River Basins (MRBs, Crawford and others, 2006)....
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: September 10, 2026 at 09:45 PM -
This data release contains input data used in model development and TIF raster files used to predict the probability of low dissolved oxygen (DO) and high dissolved iron (Fe) in groundwater within...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: September 10, 2026 at 10:33 PM -
Dissolved pesticides were measured in weekly water samples from 85 wadeable streams in Central Coastal California over a variable six-week period during March–May, 2017, as part of the California...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: September 10, 2026 at 08:58 PM -
This dataset is a 30-meter resolution raster of estimated extent of subsurface tile drains, developed from tabular data of state-level estimates of agricultural land drained by tiles combined with...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: September 10, 2026 at 09:55 PM -
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the basal area of red alder trees within each incremental watershed delineated in the NHDPlus v2 dataset in the...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: October 14, 2026 at 05:24 AM -
This data set represents the area of Hydrologic Landscape Regions (HLR) compiled for every catchment of NHDPlus for the conterminous United States. The source data set is a 100-meter version of...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 29, 2026 at 08:46 AM -
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 20, 2026 at 07:23 AM -
This data set represents the area of National Resources Inventory irrigation system, tailwater recovery conservation practice, in square kilometers, in the conterminous United States. The data set...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 29, 2026 at 08:45 AM -
This 30-meter resolution data set represents the tree canopy layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 14, 2026 at 05:05 AM -
This tabular data set represents the percent of land cover classes from the 2001 National Land Cover Dataset compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 08:23 PM -
This data release includes grids representing the depth and thickness of drinking-water withdrawal zones, polygons of hydrogeologic settings, an inventory of sources of well construction data, and...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 09:19 PM -
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 08:58 PM -
This metadata record describes 24 tabular data sets that estimate the percent of agricultural land that may be subject to select conservation practices for each year during the period 2000-2012...
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This data set represents the percent of cropland/pasture/fallow land cover in the conterminous United States. The data set was used as an input data layer for a national model to predict nitrate...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 29, 2026 at 06:40 AM -
This data set represents the Nematicide use on agricultural land in kilograms per square kilometer, 2009 value compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2)...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 09:47 PM -
Application of fertilizer phosphorus to nonfarm land in the United States Pacific Northwest for 2002
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of fertilizer phosphorus that was applied to nonfarm land in the Pacific Northwest region of the...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 14, 2026 at 05:51 AM -
This tabular data set represents the average atmospheric (wet) deposition, in kilograms per square kilometer, of inorganic nitrogen for the year 2002 compiled for every catchment for MRB_E2RF1 of...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 08:25 PM
