North of Moab, the Klondike Bluffs trail winds through colorful hills near clearly visible dinosaur tracks on slabs of sandstone. The route follows jeep roads to the Arches National Park boundary.
To reach mountain biking at the Klondike Bluffs Trailhead from Moab, head north on US191 for 17.5 miles. Turn right heading east on Klondike Bluffs Road for 2.7 miles. The trailhead parking area is on the left.
From the trailhead, the route follows a mining road across a valley, then climbs a long ramp of fractured slickrock. It's a mini-maze of cracks pitched at a low angle. Once past the slickrock, the trail climbs on mining roads to reach the boundary with Arches. From the end of the trail, a short walk leads to a circle view of sandstone fins and towers within the park. This main route is a 9 mile out and back with about 800 feet of elevation gain. About half is singletrack and half is dirt road.
In addition to the main Klondike Bluffs route, there is a newer route of mostly singletrack called Baby Steps. It starts about 0.7 miles down the main Klondike Bluffs route and is pretty technical.