Hike McCullough Gulch to Upper Blue Reservoir

McCullough Gulch Trailhead

With peaks, lakes, and waterfalls, this trail is steep in parts, but always scenic and worth the push.

The trail first takes you to Upper Blue Reservoir, about 1.4 miles in. Past this point, it can be somewhat tricky to find the trail, but for experienced hikers, the upper valley holds a number of lakes, a waterfall, and open tundra for exploring. Mountain goat sightings are also common in this area, so keep an eye out!

Photo Credit: brklynnovember

Pack List

  • Hiking boots
  • Water
  • Sun protection
  • Snacks
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RT Distance 2.8 Miles
Elevation Gain 910 Feet
Activities Fishing, Hiking
Skill Level Intermediate
Season Summer, Autumn
Trail Type Out-and-Back
Dog Friendly


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My first, and favorite, hike I've done in Colorado!

Please respect the places you find on The Outbound Collective.

Always practice Leave No Trace ethics on your adventures. Be aware of local regulations and don't damage these amazing places for the sake of a photograph. Learn More

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