Mosier Twin Tunnels
In Oregon, a bicycle is legally considered a vehicle, and the same Oregon road laws apply. Please “be seen” and practice safe riding. Vehicle traffic, farm equipment and narrow shoulders exist on many Oregon roads, and you may find that construction projects, traffic or other events may cause road conditions or signage to differ from the map results, ride descriptions and directions. For travel options plus weather and road conditions, visit tripcheck.com, call 511 (in Oregon only), 800.977.6368 or 503.588.2941. Routes listed on this website are for informational purposes and intended as a reference guide only.
Where motorists on old U.S. Highway 30 once crept around curves high along the cliffs of the Columbia River Gorge, hikers, bicyclists and users of other muscle-driven forms of transportation leisurely enjoy the view from the Historic Columbia River Highway State Trail. The trail, two disconnected paved ribbons along abandoned stretches of the historic highway, give you more than 10 miles of sightseeing thrills.
Between Hood River and Mosier, the five mile Twin Tunnels segment passes through two climate zones. Starting at the east Mark O. Hatfield Trailhead near Mosier, the trail leads through semi-arid terrain dotted with ponderosa pine for about a mile until you reach the Twin Tunnels. Spectacular geologic formations tell the story of the gorge’s creation.
After passing through the tunnels, you’ll emerge into a forest of fir trees and other common western Oregon plants. Viewpoints along the 3.5 mile segment from the tunnels to the west Mark O. Hatfield Trailhead overlook the river.