1. County-level estimates of nitrogen and phosphorus from commercial fertilizer for the conterminous United States, 1987-2006 Author/Creator: Gronberg, JoAnn M. Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2012 Resource Type: Book Access & Availability: Loading
2. Nitrate loads and concentrations in surface-water base flow and shallow groundwater for selected basins in the United States, water years 1990-2006 Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2010 Resource Type: Book Access & Availability: Loading
3. Development and application of regression models for estimating nutrient concentrations in streams of the conterminous United States, 1992-2001 Publication/Creation: Reston, Va. : U.S. Geological Survey, 2010 Resource Type: Book Access & Availability: Loading
4. Nutrients in streams and rivers across the nation -- 1992-2001 Author/Creator: Mueller, David K. Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2006 Resource Type: Book Access & Availability: Loading
5. Water-quality, streamflow, and ancillary data for nutrients in streams and rivers across the nation, 1992-2001 Author/Creator: Mueller, David K. Publication/Creation: Reston, Va. : U.S. Geological Survey, 2005 Resource Type: Book Access & Availability: Loading
6. Traveltime characteristics of Gore Creek and Black Gore Creek, upper Colorado River basin, Colorado Author/Creator: Gurdak, Jason J. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
7. Water-quality data analysis of the upper Gunnison River watershed, Colorado, 1989-99 Author/Creator: Gurdak, Jason J. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
8. Water quality at basic fixed sites in the Upper Colorado River Basin National Water-Quality Assessment study unit, October 1995-September 1998 Author/Creator: Spahr, Norman E. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
9. Characterization of selected biological, chemical, and physical conditions at fixed sites in the Upper Colorado River Basin, Colorado, 1995-98 Author/Creator: Deacon, Jeffrey R., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
10. Low-flow water-quality characterization of the Gore Creek watershed, upper Colorado River basin, Colorado, August 1996 Author/Creator: Wynn, Kirby H. Publication/Creation: Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey : National Water-Quality Assessment, [1998] Resource Type: Book Access & Availability: Loading