Case file · Anomaly hotspot
Racetrack Playa sailing stones
Rocks on the dry lakebed of Racetrack Playa in Death Valley leave long trails as if they had moved by themselves. Geologists Jim McAllister and Allen Agnew first described them scientifically in 1948.
1948 CE · 36.68, -117.56 · status: explained
The account
For decades nobody saw a stone move, and theories ranged from wind on mud to magnetism.