Off to the Races

Day 4
Back the way we came Hwy 80.

The Bonneville Salt Flats are a 159 square mile (412 km²)[1] salt flat in northwestern Utah. The depth of the salt has been recorded at 6 feet (1.8 m) in many areas.[citation needed] A remnant of the ancient Lake Bonneville of glacial times, the salt flats are now public land managed by the Bureau of Land Management. It is the largest of many salt flats located west of the Great Salt Lake. The Bonneville Salt Flats appear as a film location portraying "Davy Jones' Locker" in the movie Pirates of the Caribbean: At World's End.
Each rainfall erases tire marks and flattens the densely-packed salt pan that is inhospitable to plants. The area is extremely flat and nearly aligned perfectly with the shape of Earth, allowing visitors to see the curvature of the planet by producing an optical illusion that makes many of the mountains within the vicinity appear to be floating in the air since their bases are on the other side of the curve and thus out of sight.
Location
The salt flats are accessible by Interstate 80, which runs along its southern border, and are located on the eastern border of the casino-resort town of West Wendover, Nevada, which is 115 miles (185 km) west of Salt Lake City, Utah. Visitors can reach the flats on the Bonneville Speedway exit. West-bound I-80 travelers have an additional rest area overlook.
History
First recognized for its potential as a speed-testing ground in 1896 by W. D. Rishel while scouting for a location for a bicycle race course. In 1930's the area became internationally famous when Malcolm Campbell set numerous speed records, not to mention the naming of the legendary Triumph Bonneville motorcycle.
Racing and speed records
The salt flats are perhaps most famous for their use as the Bonneville Speedway for high-speed race cars which have achieved speeds in excess of 600 miles per hour (1000 km/h). At least one project, called the Bonneville 400, is attempting to break the 400 km/h (249 mph) speed record.