btrgotthatonething:

doctorkane:

In the dry lakebed of Racetrack, Death Valley stones as big as 700 pounds mysteriously slide across the surface of the earth without any notable external forces acting upon them. While some researchers believe a combination of natural events, such as wind and ice, cause these stones to “sail”, others question this theory pointing out that the stones don’t follow a predictable path and change directions abruptly.

THE PIONEERS USED TO RIDE THESE BABIES FOR MILES