The Citadel is a ranked 13'er located on the Continental Divide, north of the Eisenhower Tunnel. The peak has twin summits and is not officially named. The Citadel is close to to I-70, and typically accessed via the Herman Gulch trailhead, so the first bit of the approach can be somewhat crowded on the trail. However, once you reach the end of the trail and bushwhack towards the base of the mountain, the traffic diasappears and you have a lot of solitude.
Herman Gulch is the most common approach. The trailhead is at the parking area just off of exit 218 on I-70. The Herman Gulch Trail takes you up the valley to the upper reaches of the gulch and timberline, before you navigate off trail towards the Citadel. This is not a designated wilderness area and is quite popular among more casual hikers.
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Mountain Project's determination of some of the classic, most popular, highest rated routes for The Citadel:
East Ridge - The Citadel (Clear Creek, CO) 4th Trad, Alpine, 2 pitches, 3000 feet, Grade II
Featured Route For The Citadel
East Ridge - The Citadel (Clear Creek, CO) 4th CO : Alpine Rock : The Citadel
After reaching Herman Lake, head WSW and follow the trail until it disappears near Herman Lake's outlet stream. Contour along the slopes and marshy areas towads the saddle which sits to the east of the Citadel.After gaining this saddle at 12,400 feet, hike up the Citadel's east ridge. Once below the east summit block, the standard route traverses the cliffs to the WNW taking you to a steep, loose, class 3 gully which provides access to a saddle between the Citadel's two summits. From here, you c...[more] Browse More Classics in CO