Bonneville Salt Flats
Posted by: brwhiz
N 40° 44.252 W 113° 51.422
12T E 258753 N 4513548
Quick Description: This area known for auto racing and attempts at new land speed records is the bottom of an ancient lake.
Location: Utah, United States
Date Posted: 4/9/2012 2:39:25 PM
Waymark Code: WME6G9
During the Pleistocene a 1500 foot deep lake covered large portions of Utah and southern Idaho. Erosion along its shoreline deposited large amounts of sediment along its bottom, gradually building up a level underwater surface. When the lake burst its northern boundary much of it drained out through Idaho. Over large expanses of time the lake continued to shrink in stages and the surface dropped until it finally resulted in a lake with no outlet. The salinity level in the lake rose and salt precipitated out and settled to the bottom. This formed the expansive salt pans on the western edge of the Great Salt Lake and formed an ideal surface upon which to travel at great speeds.
The Salt Flats can be viewed from Interstate 80 Rest Areas on the southern edge of the racing venue, racing events can be attended at the prepared venues (with an attendant access fee), or the flats can be visited without charge when no events are in progress.
If the flats are visited directly it is advised that you vehicle be washed thoroughly to remove any salts that might have adhered to the surfaces.