USGS - science for a changing world

Water-Resources Investigations Report 99-4074

Hydrology and water quality of the Oljato alluvial aquifer, Monument Valley area, Utah and Arizona

By L.E. Spangler

Version 1.0


thumbnail of cover

The Navajo Indian Reservation in Utah and Arizona is situated in one of the most arid parts of the Western United States. Normal annual precipitation is less than 8 to about 10 in. over much of the region (Cooley and others, 1969). Generally, water supplies for residents on the Reservation come from wells and springs, but locally, these supplies are small and, in some areas, they are slightly to moderately saline and not suitable for domestic purposes (Naftz and Spangler, 1994). One such area where water supply is limited is Monument Valley, along the Utah-Arizona State line, in the northern part of the Navajo Indian Reservation.

The main issue identified by the Navajo Nation Department of Water Resources (DWR) concerns adequate water supply for the residents of the Monument Valley area. Additional water sources need to be developed locally to avoid having water piped into the area and to minimize haulage of water for domestic use. In addition, supplemental water supplies need to be developed to meet the demands of an increasing number of tourists. Because of these needs, the Navajo Nation DWR, in cooperation with the U.S. Geological Survey, investigated the hydrology of, and quality of water in, an alluvial aquifer along a tributary of Oljato Wash, near Oljato, Utah.

This report is contained in the following files:

For viewing and printing upon download.
(This version of the report is accessible as defined in Section 508 of the Rehabilitation Act of 1973, Amendments of 1998.)

Adobe Reader To view files in PDF format, download free copy of Adobe Reader.

*Downloading Suggestion: It is best to download a large PDF file to your hard drive rather than open it inside your browser.

   A standard click may automatically open the PDF file inside the browser but doing so will result in a very slow load.
   Downloading the PDF file may take several moments but will be worth the wait.
   Once it is downloaded, open the PDF from your hard drive using Adobe Acrobat—it will open in a fraction of the time it would take to open the PDF over the Internet.

Assistance for PC & Mac Operating Systems

Microsoft Windows and Explorer or Netscape:

1. Right-click the link to a file, and then choose 'Save (Link) Target As' from the pop-up menu.
2. In the Save As dialog box, select a location on your hard drive, and then click Save.

Apple OS and Firefox, Explorer or Safari:

1. Right-click (or Control-click) the link to a file, and then choose 'Download Link to Disk' from the pop-up menu.
2. In the Save dialog box, select a location on your hard drive, and then click Save.

Send questions or comments about this report to the author, Larry Spangler at 801.908.5056.
For more information about USGS activities in Utah, visit the USGS Utah Water Science Center home page.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo FirstGov logo U.S. Department of the Interior | U.S. Geological Survey
Persistent URL:
Page Contact Information: Publications Team
Page Last Modified: 05/02/07