It's located about 120 miles from Madras, along the Santiam pass.
Several witnesses believe they saw 31 year old Clinton Swearingen in the area in the last 24 hours.
A resident reported seeing him driving a small red truck around 4 A.M.
Police are scouring the area looking for the escapee.
Authorities say Swearingen climbed the razor wire fence Sunday night and escaped. He is in prison on theft and burglary charges.