Hunting Mastodons
The Cordilleran Ice Sheet began to spread across present-day Washington state more than 17,000 years ago. The ice blocked the Strait of Juan de Fuca […]
The Cordilleran Ice Sheet began to spread across present-day Washington state more than 17,000 years ago. The ice blocked the Strait of Juan de Fuca […]
The Great Basin includes the high desert regions between the Sierra Nevada and the Rocky Mountains. It is bounded on the north by the Columbia […]
The Meadowcroft Rockshelter is an ancient American Indian site located on the north bank of Cross Creek about 30 miles southwest of present-day Pittsburgh, Pennsylvania. […]