Pine Mountain is a rhyolitic mountain east of Bend and south of U.S. Route 20 (US 20) in eastern Deschutes County, Oregon, United States. It is the site of an astronomical observatory called the Pine Mountain Observatory.
Pine Mountain is a rhyolitic mountain east of Bend and south of U.S. Route 20 (US 20) in eastern Deschutes County, Oregon, United States. It is the site of an astronomical observatory called the Pine Mountain Observatory.