Bonneville Salt Flats
The Bonneville Salt Flats are a densely packed salt pan in Tooele County in northwestern Utah, United States. A remnant of the Pleistocene Lake Bonneville, it is the largest of many salt flats west of the Great Salt Lake. It is public land managed by the Bureau of Land Management and is known for land speed records at the Bonneville Speedway. Access to the Flats is open to the public.
The Flats are about 12 miles (19 km) long and 5 miles (8 km) wide, with a crust almost 5 ft (1.5m) thick at the center and less than one inch (2.5 cm) towards the edges. It is estimated to hold 147 million tons of salt, approximately 90% of which is common table salt.
Geologist Grove Karl Gilbert named the area after Benjamin Bonneville, a U.S. Army officer who explored the Intermountain West in the 1830s.[2][3] In 1907, Bill Rishel and two local businessmen tested the suitability of the salt for driving by taking a Pierce-Arrow onto its surface.[4]
A railway line across the Flats was completed in 1910, marking the first permanent crossing.[2] The first land speed record was set there in 1914 by Teddy Tetzlaff.[5]
Entertainment filmed at the Flats include portions of Walking with Dinosaurs Special - The Ballad of Big Al, Knight Rider, Warlock, Independence Day (1996) and its sequel, SLC Punk, Cremaster 2 from Cremaster Cycle, The Brown Bunny, The World's Fastest Indian, Gerry, The Tree of Life, Top Gear and Pirates of the Caribbean: At World's End. Furthermore, the Pontiac Bonneville (former flagship sedan of the Pontiac motor division), the Triumph Bonneville motorcycle, and the Bonneville International media company are all named for the Flats.
The Bonneville Salt Flats hosts the annual US Flight Archery Championships. The goal of flight archery is to shoot arrows from bows at the greatest distance possible without regard to hitting a target, and so the vast flat plane of the flats serves as an ideal location to measure the linear distance traveled by arrows without geographic interference. Both the 1977 (archer Don Brown) and 1982 (archer Alan Webster) world records were set there; while the current world record, achieved in 1987 (archer Don Brown), was set at the salt flats near Smith Creek, Nevada.[6]
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