FATMAP by Strava

Captain Jack

Crested Butte

Relatively approachable for most riders, except for one massive rock garden in the middle.

Mountain Biking Extreme

1.9 km
4 m
247 m
0-1 hrs
Low Point
2.9 km
High Point
3.2 km
Captain Jack Map

Captain Jack gets a double black diamond rating from the bike park… but in reality, most of the trail isn’t all that difficult. The majority of the trail is a rocky, rooty romp through the deep forest down the flank of Mount Crested Butte.


The rating comes from one massive rock garden located smack in the middle of the trail. This long, steep, burly cascade of rocks requires full commitment. Once you’ve dropped into this line, it’s almost impossible to stop until you get to the bottom.

There are a number of lines through the rocks of varying difficulties, and the easiest line can be rolled the entire way. However, the straightest and fastest line requires launch some 4-5 foot drops, landing on point, and then blasting right back into the boulder field. No joke!

Compared to the Psycho Rocks, the other double black diamond tech line in the Evolution Bike Park, Captain Jacks isn’t nearly as awkward, gnarly, or massive. That said, the crux rock garden on this trail isn’t to be sneered at!



Very steep, difficult, narrow singletrack with widely variable and unpredictable trail conditions. Unavoidable obstacles could be 15in/38cm tall or greater, and unavoidable obstacles with serious consequences are likely to be present. Obstacles could include big rocks, difficult root sections, drops, jumps, sharp switchbacks, and more. Ideal for expert-level riders.

High Exposure

3 out of 4

Some trail sections have exposed ledges or steep ascents/descents where falling could cause serious injury.


2 out of 4

Away from help but easily accessed.

Best time to visit

between June and September


  • Technical
  • Shuttle-run
  • Singletrack
  • Drops
  • Jumps
  • Roots
  • Rock Rolls
  • Rock Slabs
  • Rock Gardens

Similar routes nearby

Guidebooks in this area