Monarch Lake to Crater Lake Hike, Colorado (2026)
Updated January 2026
Crater Lake in the Indian Peaks Wilderness is one of Colorado’s most stunning alpine destinations, framed by the dramatic Lone Eagle Peak cirque and jagged summits. This moderate-strenuous out-and-back from Monarch Lake Trailhead offers waterfalls, meadows, wildlife sightings (moose common), and epic views—perfect for a challenging day hike or overnight.
Quick Facts
- Distance: 15.9 miles round-trip
- Elevation Gain: ~2,224 ft
- Time: 6-10 hours (day hike); 2 days (overnight)
- Difficulty: Strenuous (steady climbs, altitude)
- Trailhead: Monarch Lake (limited parking—40 spots)
- Parking Fee: $5/day (waived with America the Beautiful Pass)
- Best Season: June–mid-September (snow-free)
- Day Use: No permit needed
- Overnight: Required June 1–Sept 15 (12 designated sites; book early on Recreation.gov—sales start early March)
- Rules: Leashed dogs OK; no drones; no campfires at Crater Lake
Trail Breakdown
- Monarch Lake Loop Start (0-4 miles): Easy lakeside path with views; watch for moose.
- Cascade Creek Waterfalls (4-7 miles): Series of cascades and steady climbs through forest/meadows.
- Mirror Lake & Crater Lake (7-8 miles): Final push to alpine basin; Mirror first, then Crater with iconic Lone Eagle reflection.
Getting There
From Denver: I-70 W → US-40 W over Berthoud Pass → through Winter Park/Fraser/Granby → US-34 E → County Road 6 (dirt but 2WD OK) to trailhead (~3 hours).
Staying Nearby
- Campgrounds: Arapaho Bay (closest, ~$17-20/night); Stillwater; Green Ridge.
- Hotels: Options in Grand Lake, Granby, or Winter Park.
This hike rewards with postcard-perfect scenery—arrive early for parking! Questions? Ask below.