Mark O. Hatfield Wilderness Area Trail is a five-mile hiking and biking trail that takes you along an old section of the historic Columbia River Highway in the Columbia River Gorge. There are two trailheads, one in Hood River and one in Mosier. Starting in Mosier, the trail heads west toward Hood River through a dry landscape of ponderosa pine and deciduous trees. There are numerous viewpoints along this trail that offer spectacular Columbia Gorge scenery. After about a mile, you'll pass through the historic Twin Tunnels. These tunnels take you directly through a basalt cliff. After you emerge from the tunnels, the trail continues to wind along the high edge of the gorge for another four miles through a fir-filled forest. A state park day use permit is required to park at the Hood River or Mosier Trailheads. You can purchase a permit at the self-service pay station at either trailhead or at the visitor's center at the Hood River trailhead. The trail ends at Hood River where there is a visitor's center, restrooms and water. To get to the Mosier Trailhead, drive east of Hood River on Interstate 84 about five miles to Exit 69. In downtown Mosier, turn west on Rock Creek Road and proceed about two miles to the trailhead parking area. To get to the Hood River Trailhead, take exit 64 in Hood River. Proceed through downtown; turn left (east) on the old Columbia River Highway and drive to the trailhead parking area on the left side of the road.