The Bonneville Salt Flats Race Track is listed on the National Register of Historic Places.
[1] The salt flats were first used for motor sports in 1912, but did not become truly popular until the 1930s when Ab Jenkins and Sir Malcolm Campbell competed to set land speed records.
A reduction of available racing surface and salt thickness has led to the cancellation of events at Bonneville, such as Speed Week in 2014 and 2015.
The annual Speed Week was cancelled in both 2014 and 2015, as were many land-speed racing events, due to deteriorating track conditions.
[2][3] Heavy rains caused a layer of mud from surrounding mountains to flow onto the flats, covering approximately 6 mi (9.7 km) of the track.
Although another section of the flats would normally be used, nearby salt mining operations had reduced the size of the alternative track.
Though recent studies have been made (since 1960), the causes of this deterioration are not clear, although the evidence points toward both local climatic changes and salt mining.
[10] In October, the Southern California Timing Association puts on World Finals, a scaled-down version of Speed Week.
On 15 October 1995, Dutch cyclist Fred Rompelberg achieved 268.831 km/h (167.044 mph), using a special bicycle behind a dragster with a large shield.