Open-File Report 2006–1359
By Robert L. Baskin
The U.S. Geological Survey, in cooperation with the Utah Department of Natural Resources, Division of Forestry, Fire, and State Lands, collected bathymetric data for the north part of Great Salt Lake during the spring and early summer of 2006 using a single-beam, high-definition fathometer and real-time differential global positioning system. About 5.2 million depth measurements were collected along more than 765 miles (1,230 kilometers) of survey transects. Sound-velocity profiles were obtained in conjunction with the bathymetric data to provide time-of-travel corrections to the depth calculations. Data were processed with commercial hydrographic software and exported into geographic information system (GIS) software for mapping and calculation of area and volume. Area and volume calculations show a maximum area of about 385,000 acres (1,560 square kilometers) and a maximum volume of about 5,693,000 acre-feet (about 7 cubic kilometers) at a water-surface altitude of 4,200 feet (1,280 meters). Minimum natural water-surface altitude of the north part of Great Salt Lake is just below 4,167 feet (1,270 meters) in the area just north of the Union Pacific railroad causeway halfway between Saline and the western edge of the lake. The north part of Great Salt Lake generally grades gradually to the west and north and is bounded by steep scarps along its eastern border. Calculations for area and volume are based on a low altitude of 4,167 feet (1,270 meters) to a high altitude of 4,200 feet (1,280 meters).
This report is contained in the following files:
For viewing and printing upon download.
Related information may be obtained from the following files:
Scientific Investigations Map 2954.pdf (3.3 MB, 27 x 27 inches)
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.
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.
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.