Four Pass Loop
USA · North America · Multi-day trek · score 75/100
At a glance
| Countries | USA |
|---|---|
| Continent | North America |
| Region | Colorado (Maroon Bells-Snowmass Wilderness) |
| Type | Multi-day trek |
| Length | 43 km |
| Typical duration | 4 days |
| Difficulty | 4/5 (Hard) |
| Max altitude | 3810 m |
| Best season | Jul-Sep |
| Start | Maroon Lake, Aspen, CO |
| End | Maroon Lake, CO (loop) |
| Permit / guide | Overnight permit required |
| Special gear | bear canister required |
Score
75/100
Four 3,800 m passes around the Maroon Bells; iconic Colorado loop; busy in season
How the score works: scoring method. Information confidence: high.
Sources
Information compiled from public sources, as of October 19, 2026. Trail conditions, permits and closures change: verify with local authorities before you go.
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