Southeast of Bend near Prineville in the Ochoco National Forest, the Millican Plateau OHV Trail System is managed by the Prineville District of the BLM. The Plateau provides a variety of desert riding experiences from easiest to more difficult. There are 111 miles worth of trails for Class I/III OHVs, of which 37 miles are also open to Class II OHV s. The Four Corners Staging Area has an information kiosk providing maps and information for riders.
The Millican Plateau offers a true desert riding experience. The soils are mostly sand with rock outcrops and the vegetation is a mixture of sagebrush and juniper. The best riding season is during the winter when there is good ground moisture. There are only a couple of weeks during the winter when the trails are not rideable due to snow or frost.
The Millican Plateau is open for riding year round. During the summer, hot, dry, dusty conditions may inhibit riding. Individual trails may be closed temporarily for maintenance and reconstruction or to protect resources. Extreme fire conditions or snow may also close the Plateau for short periods of time.
To reach the dirt biking trailhead from Bend, follow Highway 20 east about 4 miles and turn left on the Powell Butte Highway. Go about a half mile and turn right on Alfalfa Market Road. Once you have turned onto Alfalfa Market Road it is 16 miles to the Four Corners Staging Area. Alfalfa Market Road turns into Willard Road which turns into SW Reservoir Road. Follow SW Reservoir Road to a four-way intersection (Four Corners) where SW Reservoir Road meets the Millican Road. Continue east 1/8 mile and follow signs to Four Corners OHV Staging Area.
Overall, Millican Plateau ORV Trail System is the 19th most popular dirt bike trail of all 48 dirt biking rides in Oregon.