Alva Review-Courier -

WENDOVER, Utah (AP) — In the Utah desert, a treeless expanse of pristine white salt crystals has long lured daredevil speed racers, filmmakers and social media-obsessed tourists. It's so flat that on certain days, visitors swear they can see the curvature of the earth.

The glistening white terrain of the Bonneville Salt Flats, a remnant of a prehistoric lakebed that is one of the American West's many other-worldly landscapes, serves as a racetrack for land speed world records and backdrop for movies like "Independence Day" and "The World's Fastest Indian."

But it's growing thinner and thinner...