US Salt Flats Speed Week

In this Wednesday, July 22, 2015 photo, a couple walks on the Bonneville Salt Flats, in Utah. A small city of tents, trailers and thousands of visitors appears almost every August in the Utah desert to watch cars, motorcycles and anything with wheels rocket across gleaming white sheets of salt at speeds of 400 mph. But wet weather has forced the cancellation of Speed Week for the second straight year and revived a debate about whether nearby mining is depleting the Bonneville Salt Flats of their precious resource. (Photo by Rick Bowmer/AP Photo)

In this Monday, July 20, 2015 photo, Bill Lattin, the Southern California Timing Association president and Speed Week race director, stands in the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

This Friday, July 17, 2015 photo shows a sign at the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

In this Tuesday, July 21, 2015, photo, Wendover Mayor Mike Crawford kneels down along the exposed mud track on the Bonneville Salt Flats, in Utah. Crawford, who owns an auto parts shop in town, said the decision by race organizers to cancel this year’s event weeks away will be a bigger economic blow than last year, when a monsoon storm left standing water on the track on the eve of the race. Wet weather has forced the second-straight cancellation of an annual race at Utah’s world-famous Bonneville Salt Flats. (Photo by Rick Bowmer/AP Photo)

This Wednesday, July 22, 2015, shows an aerial view of the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

In this Monday, July 20, 2015, photo, a car driving through a puddle on the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

This Wednesday, July 22, 2015, photo shows an aerial view of the Bonneville Salt Flats, in Utah. (Photo by Rick Bowmer/AP Photo)

In this Monday, July 20, 2015 photo, a car drives across the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

This Monday, July 20, 2015 photo shows the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

In this Saturday, July 25, 2015 photo, visitors look on as the sun rises on the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

In this Monday, July 20, 2015 photo, Bill Lattin, the Southern California Timing Association president and Speed Week race director, stands in the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

This Wednesday, July 22, 2015 photo shows an aerial view of the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

In this Monday, July 20, 2015 photo, Bill Lattin, the Southern California Timing Association president and Speed Week race director, points to salt on the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)

In this Tuesday, July 21, 2015, photo, Wendover Mayor Mike Crawford stands along the exposed mud track on the Bonneville Salt Flats, in Utah. (Photo by Rick Bowmer/AP Photo)

In this Wednesday, July 22, 2015 photo, Sam Evers of Houston performs his yoga on the Bonneville Salt Flats in Utah. (Photo by Rick Bowmer/AP Photo)