Bureau of Reclamation, Oregon.
Nearly 30 miles long and up to eight miles wide, Upper Klamath Lake is the largest freshwater body west of the Rockies. It has a surface area of 91,000 acres and 98 miles of shoreline. Recreation facilities are managed for Reclamation by the U. S. Fish and Wildlife Service.
Take State route 140 north of Klamath Falls, OR