Dirty Bismarck trail photo
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Level: Easiest
Length: 10 mi (16.1 km)
Surface: Doubletrack
Configuration: Loop
Elevation: +447/ -378 ft
Total: 85 riders

Mountain Biking Dirty Bismarck

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#305 of 1,377 mountain bike trails in Colorado
#2,927 in the world

A mountain bike version of the classic Morgul-Bismarck loop. The ride is a mix of smooth gravel road-type riding and some mild singletrack; this is an easy ride from a technical standpoint, but it can be a great aerobic workout if you want it to be.

Starting from the Coalton trailhead, head out on Meadowlark Trail (it's the trail that goes north, not the one that goes west). This eventually runs into Mayhoffer-Singletree Trail, where you'll take a left. Follow this trail until it crosses a road and runs into Cowdrey Draw. At the end of Cowdrey Draw, continue on Community Ditch (to extend the right, you can take a right on Community Ditch and ride the Marshall Mesa trails until they meet back up with Community Ditch near Highway 93). Take Community Ditch all the way to Highway 93, then, being very vigilant about traffic, ride a few yards south on the highway until you get to the end of Greenbelt Plateau. Ride Greenbelt Plateau until it meets up with the High Plains Trail near Highway 128. Turn left on High Plains, and take it all the way back to the Coalton trailhead (High Plains turns into Coalton at the top of the hill).

First added by dr_albright on Aug 25, 2012. Last updated Apr 28, 2020. → add an update
Before you go
  • Drinking water: unknown
  • Lift service: unknown
  • Night riding: yes
  • Pump track: unknown
  • Restrooms: unknown
  • Fat bike grooming: unknown
  • E-bikes allowed: unknown
  • Fee required: unknown
This trail information is user-generated. Help improve this information by suggesting a correction.
Getting there
From Highway 36, head south on McCaslin Blvd. After a few miles, you'll come to a roundabout at the intersection of McCaslin and Coalton; take the western-most exit directly into the Coalton trailhead parking lot.

Dirty Bismarck Trail map

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fraserb (on Sep 29, 2019)
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Good (on Jun 7, 2019)
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