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UPDATESWhat we've been doing

  • Now Steena, you promised you wouldn’t get lost again…  – October 20, 2014

    Mission: Collect Wilderness permits and check out potential hunter camps along Martin trail, hike out to West Grouse Mountain trailhead. This is the story about … Read More >>

  • Seasons of Wonder  – September 30, 2014

    Not everyone has a chance to experience the wilderness as I have this season. I have had the opportunity and absolute privilege to see the … Read More >>

  • A Return to the Primitive  – September 22, 2014

    In the Wilderness Act of 1964, which we can thank for areas like the Holy Cross Wilderness, part of the definition of wilderness contains the … Read More >>

  • From Sea Level to Summit  – September 19, 2014

    I drove from Atlanta to Colorado in early August knowing little about what the next two months doing trail maintenance may entail.  Soon enough I … Read More >>

Castle Peak

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  • Elevation:14,264 feet (14th highest)
  • Maps:USGS Quad: Mount Humboldt
    Trails Illustrated® – TOPO Map # 127
    Click here to purchase Trails Illustrated® maps for this route.
  • Contact:US Forest Service, Aspen Ranger District (970) 925-3445

Recommended Route

Montezuma Basin route—use of this route will help to reduce impacts to this Fourteener’s fragile alpine environment. For detailed route information including pictures, maps, and elevation profiles, click here.

Route Information and Additional Resources

From Aspen, go northwest on CO 82 to the junction with Ashcroft and Maroon Lake roads. Go left, then immediately take the left-hand fork to Castle Creek. Go 11.5 miles to Ashcroft and then 1.5 miles to a fork. The main road (left at the fork) becomes very rough. Most vehicles cannot make it up this road, and should be parked at the valley floor. Hike up into Montezuma Basin. Just south of Montezuma Mine, hike southwest toward Castle Peak. Stay on the clear trail all the way to the summit.

The above information does not replace the need to consult additional maps and Colorado Fourteener Guidebooks for more detailed route descriptions. We suggest checking multiple resources before departing on any hike. Keep in mind that not all guidebooks list this as a recommended route and that each guidebook’s description or route name may vary slightly.

Peak Specific Environmental and Safety Concerns

No camping is allowed in the Castle Creek Valley. Camping is allowed on the dirt road to Montezuma Basin in one of the six designated sites. There are many social trails that have been created on this peak’s upper slopes. Take care to stay on the main trail.