Glacier Peak, an old mine road to the summit

Glacier Peak is a high mountain pass at an elevation of 3.917m (12,851ft) above the sea level, located on the boundary of Summit and Jefferson counties, in the United States. It's one of the highest mountain roads of Colorado.

Glacier Peak

Located in the Front Range of the Rocky Mountains of Colorado, on the boundary of Arapaho National Forest and Pike National Forest, the bumpy road to the summit is unpaved. It’s an old mine road called Montezuma road. The road can be muddy, rocky, and difficult to traverse. Only OHV or SUVs with significant clearance should attempt to summit the pass. Starting from Georgia Pass, the road is 4.50km (2.8 miles) long. Over this distance the elevation gain is 382 meters. The average gradient is 8.48%.
Accessibility is largely limited to the summer season. The trail may be impassable in the spring because of one wet area on the upper north side. The scenery is beautiful but make sure your equipment is in good shape and you know what you are getting into. The route takes you through big pines, aspen forests, and alpine meadows, with plenty of panoramic vistas along the way. The views are pretty cool at the summit however it's a long bumpy ride. A road that heads east from the pass goes to high point at top of Whale Peak.
Pic: Jon Bradford