awaiting safety review
In the middle of the 20th century, more than 1,450 glaciers could be found in the contiguous U.S. Together, they covered 217 square miles (562 square kilometers) in six Western states.
In the middle of the 20th century, more than 1,450 glaciers could be found in the contiguous U.S. Together, they covered 217 square miles (562 square kilometers) in six Western states.