Hiking
Blackhawk Pass
Singletrack near Rico, walked in either direction. Durango Trails rates it advanced.
Blackhawk Pass, also known as Segment 26 of the Colorado Trail, is a scenic stretch of trail running through the rugged San Juan Mountains. The route is a well regarded 10.9 mile black diamond singletrack trail starting at Forest Road 578 (Hermosa Park Road) and ending at Forest Road 550 (Hotel Draw Road).
- Length
- 9.1 miles
- Elevation gain
- 1150 ft
- Difficulty
- Advanced
- From Durango
- 36 miles
Getting there
Upper Hermosa Trailhead Parking Heading North on Main Street, continue north on 550 32 miles and enter Purgatory Ski resort. Continue through parking spots and follow the dirt road (578 – Hermosa Park Road) north from the north parking spot. Keep following 578 for 8.5 miles and turn left on 577 to find Upper Hermosa TH.
Where it is
The pin marks the trailhead. Map data © OpenStreetMap contributors.
Trail layout

Trail layout from OpenStreetMap. The line is the mapped path that matched this name. A large system may show one path, not every loop. Map data © OpenStreetMap contributors.
Length and climb come from Durango Trails. A system with several trails lists each one above.