National Park Service has added the Paisley Five Mile Point Caves to the United States’ listing of the nation’s most important archaeological and historic sites. Situated near the town of Paisley in south-central Oregon, archaeological excavations at the site has produced evidence of human occupation in Oregon beginning 14,300 years ago, nearly 1,000 years earlier than previously thought.

The occupation of Paisley Five Mile Point Caves predates the appearance of “Clovis” sites by more than 1,000 years. Clovis sites characterized by a distinctive projectile point have been documented throughout many regions of the U.S. and for many years been widely accepted as evidence for the first human settlement of the Americas.