~ Round Butte Dam ~ Oregon Dam 
~ 118.9 miles from PDX.
Round Butte Dam creates Lake Billy Chinook, on the Deschutes River. Located about approximately six miles west of Madras, Ore., and approximately 90 miles southeast of Portland, Oregon.
From Round Butte Overlook Park, located on the rim of the Deschutes River Canyon, you can look down on Round Butte Dam, Lake Billy Chinook and Lake Simtustus, some 400 feet below. You can take your picture here.
GPS: 44.60333 ° N - 121.27667° W or 44° 36’ 11.99" N - 121° 16’ 36.01" W
(Click or drag Map for interactive view.)
