Argentine Pass

Arapaho National Forest, Colorado

Elevation Gain2,317ft
Trailhead Elevation10,039ft
Elevation Min/Max9160/10540ft
Elevation Start/End10039/10039ft

Argentine Pass

Argentine Pass is a hiking, biking, and horse trail in Silver Plume, Colorado. It is within Arapaho National Forest. It is 2.4 miles long and begins at 10,039 feet altitude. Traveling the entire trail is 4.9 miles with a total elevation gain of 2,317 feet. Along the trail there are parkings.

Argentine Pass Professional Guides

Detailed Trail Descriptions from Our Guidebooks

Guide to Colorado Backroads & 4-Wheel Drive Trails, Vol. 1 (FunTreks)
Charles A. Wells
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"Incredible views from 13,132-ft. Argentine Pass and top of McClellan Mountain. Don’t miss Santiago Mine and Ghost Town. (Caution: Mine is on private property. Stay on road and well away from buildings.) Not much remains of Waldorf. In the 1860s, it had the highest post office in the United States at 11,666 ft. The railroad that ran to Waldorf, in addition to carrying freight, also carried tourists. In 1905, the railroad was extended to the top of McClellan Mountain and was known as the Stairway to the Stars. At the top, tourists were given a tour of the Ice Palace, an old mining tunnel filled with ice formations. F.S. 248.1 follows the old railroad grade. If you wonder how the trains made the tight turns at the switchbacks, they didn’t. They continued past the turn, then backed up, alternating forwards and backwards up the mountainside. Many legal side roads for Jeeps and ATVs to explore. Great fall color and seasonal wildflowers. Numerous tourist attractions in quaint Georgetown. Stop at visitor center near freeway exit to learn more. Rocky at the start and very narrow at the top of Argentine Pass. Much of the lower route is easy. Snow can block trail well into summer. Follow an old railroad bed as it climbs gradually to the top of McClellan Mountain, but watch out at the end, where the road appears to go over a cliff. Suitable for most high-clearance, 4x4 SUVs. Oversize vehicles should not attempt Argentine Pass, but should be able to drive much of McClellan Mountain."

Argentine Pass Trip Reports

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This is an agressive 4 wheel trail. Be cautious, because it is deceptive. There are many bumps in the road where even some lower clearance 4 wheel drives may high center.

That said, taking the shelf road all the way to the top, provides one of the best vistas of alpine meadows and 14,000 foot peaks that can be found without a significant hike.

Argentine Pass Photos

Trail Information

Arapaho National Forest
Nearby City
Arapaho National Forest
Arapaho National Forest
Local Contacts
Colorado Atlas and Gazetteer; Arapaho National Forest map; Trails Illustrated Idaho Springs, Georgetown, Loveland Pass #104
Local Maps

Trail Log