High Quality Content by WIKIPEDIA articles! The Ochoco Mountains are a mountain range in central Oregon. The Ochoco Mountains form the western end of the Blue Mountains province. The mountains were formed when Permian, Triassic, and Jurassic rocks were slowly uplifted by volcanic eruptions to form the Clarno Formation. Today, the highest point in the range is Lookout Mountain. The dominant vegetation on the west side of the range is old growth Ponderosa pine; on the east side Western juniper is common. The western area of the Ochoco Mountains is administered by the Ochoco National Forest. The southeastern part of the range is part of the Malheur National Forest. The Ochoco Mountains are an excellent area for hiking, camping, bird watching, rockhounding, and hunting as well as cross-country skiing in the winter.