Search datasets
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This data set represents soil surface slope, in percent times 1000, 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: 5 | Catalog Last Checked: September 10, 2026 at 08:59 PM -
This data set is a national map of predicted probability of nitrate contamination of shallow ground waters based on a logistic regression (LR) model. The LR model was used to predict the...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 09:10 PM -
This data set represents the presence or absence of sandstone and carbonate rock aquifers in the conterminous United States. The data set was used as an input data layer for a national model to...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 08:21 PM -
This data set represents the area of National Resources Inventory surface drainage, field ditch conservation practice, in square kilometers, in the conterminous United States. The data set was...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:16 PM -
This data set contains county estimates of nitrogen and phosphorus content of animal wastes produced annually for the years 1982, 1987, and 1992. The estimates are based on animal populations for...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 08:44 PM -
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: 3 | Catalog Last Checked: September 16, 2026 at 11:30 PM -
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: 2 | Catalog Last Checked: September 17, 2026 at 12:49 AM -
This data set represents the presence or absence of poorly sorted glacial till east of the Rocky Mountains in the conterminous United States. The data set was used as an input data layer for a...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:44 PM -
This data set represents the presence or absence of semiconsolidated sand aquifers in the conterminous United States. The data set was used as an input data layer for a national model to predict...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:16 PM -
This data set represents the average annual nitrogen input from commercial fertilizer applied to agricultural lands, 1992-2001, in kilograms per hectare, in the conterminous United States. The...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:17 PM -
This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States,...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:04 PM -
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: 2 | Catalog Last Checked: September 10, 2026 at 09:31 PM -
This data set represents the amount of clay sediment in the soil, in percent times 1000, in the conterminous United States. The data set was used as an input data layer for a national model to...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:13 PM -
This data set represents "water input," the ratio of the total area of irrigated land to precipitation, in square kilometers per centimeter, in the conterminous United States. The data set was...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:55 PM -
This product "Predicted nitrate and arsenic concentrations in basin-fill aquifers of the Southwest Principal Aquifers study area" is a 1:250,000-scale vector dataset and was developed as part of...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:01 PM -
This data set represents the presence or absence of Valley and Ridge carbonate rocks in the conterminous United States. The data set was used as an input data layer for a national model to predict...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:16 PM -
This data set represents the presence or absence of poorly sorted glacial till east of the Rocky Mountains in the conterminous United States. The data set was used as an input data layer for a...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:42 PM -
This data set represents infiltration excess overland flow estimated by TOPMODEL, in percent of streamflow, in the conterminous United States. The data set was used as an input data layer for a...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:07 PM -
This data set represents the amount of histosols soil taxonomic order, in percent, in the conterminous United States. The data set was used as an input data layer for a national model to...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:36 PM -
This data set represents the area of National Resources Inventory surface drainage, field ditch conservation practice, in square kilometers, in the conterminous United States. The data set was...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 16, 2026 at 11:46 PM
