| Name (click to see more) | Title |
|---|---|
| uspop90 | 1990 point population coverage for the Conterminous United States |
| uspop80 | 1980 point population coverage for the Conterminous United States |
| stream | 1:2,000,000-scale Digital Line Graph files of streams |
| muid | STATSGO soil characteristics for the conterminous United States |
| nit90 | Estimates of nitrogen-fertilizer sales for the conterminous United States in 1990 |
| nit88 | Estimates of nitrogen-fertilizer sales for the conterminous United States in 1988 |
| nit87 | Estimates of nitrogen-fertilizer sales for the conterminous United States in 1987 |
| nit91 | Estimates of nitrogen-fertilizer sales for the conterminous United States in 1991 |
| nit85 | Estimates of nitrogen-fertilizer sales for the conterminous United States in 1985 |
| nit86 | Estimates of nitrogen-fertilizer sales for the conterminous United States in 1986 |
| nit89 | Estimates of nitrogen-fertilizer sales for the conterminous United States in 1989 |
| ussoils | Soils data for the Conterminous United States Derived from the NRCS State Soil Geographic (STATSGO) Data Base. [Original title: State Soil Geographic (STATSGO) Data Base for the Conterminous United States.] |
| manure | County-based estimates of nitrogen and phosphorus content of animal manure in the United States for 1982, 1987, and 1992. |
| states2m | 1:2,000,000-scale state boundaries of the conterminous United States |
| runoff | Average annual runoff in the United States, 1951-80 |
| mlra | Major Land Resource Areas (MLRA) |
| reservoir | Summary of selected characteristics of large reservoirs |
| physio | Physiographic divisions of the conterminous U. S. |
| places | City locations for all places in the TIGER files |
| nasqan | Stations in the USGS's National Stream Quality Accounting Network (NASQAN) |
| USGS Water | GIS | Help! |
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