Relatively common in the 1950s, the Wyoming Toad experienced a sharp decline during the 1970s leading to the endangered species listing and it was believed the toad was lost to science by 1980. The Wyoming Toad was later rediscovered in the wild in 1987 along the shores of Mortenson Lake, which is an alpine lake situated at 7,256 feet (2,212 m) above sea level.
