U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

General Information

  • Title: Water quality at basic fixed sites in the upper Colorado River Basin National Water-Quality Assessment study unit, October 1995 - September 1998
  • Author(s): Spahr, N.E., Boulger, R.W., and Szmajter, R.J.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Water-Resources Investigations Report 99-4223
  • Publication Date: 2000
  • Map Scale: 1:2,000,000
  • Cross Section: None
  • Find more maps in this area with mapView
  • Corrections to this entry?
* See base map disclaimer below

Map Preview

(Click image to enlarge)

Downloads from the NGMDB

Poor quality image? Let us know

Additional Resources

* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.