MTB Project Logo

A mostly doubletrack/dirt road section connecting McCaslin Blvd with W 120th Ave.


Your Rating: Rating Rating Rating Rating Rating      Clear Rating
Your Difficulty:
Your Favorites: Add To-Do · Your List
Zoom in to see details
Map Key

2.8

Miles

4.5

KM

Doubletrack

5,949' 1,813 m

High

5,552' 1,692 m

Low

398' 121 m

Up

0' 0 m

Down

3%

Avg Grade (2°)

12%

Max Grade (7°)

Dogs Leashed

E-Bikes Allowed

E-bikes allowed per regulation: bouldercolorado.gov/guide/g…

Description

This section of trail is nothing special, but it makes up the southeast corner of the Dirty Bismarck ride. It allows riders to connect McCaslin and W 120th Ave. without riding any pavement.

Contacts

Shared By:

Michael Ahnemann with improvements by Austin Cowan

Trail Ratings

  2.4 from 16 votes

#10

in Marshall Mesa

#24313

Overall
  2.4 from 16 votes
5 Star
13%
4 Star
6%
3 Star
13%
2 Star
44%
1 Star
25%
Trail Rankings

#10

in Marshall Mesa

#2,369

in Colorado

#24,313

Overall
4 Views Last Month
1,830 Since Mar 26, 2013
Easy/Intermediate Easy/Intermediate

46%
31%
15%
0%
8%
0%

Photos

Front Range fun on Dirty Bismark
May 22, 2018 near Superior, CO
Coalton Hills.
Feb 26, 2018 near Superior, CO
Dirty Bismark heading west during a spring ride.
May 31, 2017 near Superior, CO
Sun setting this evening obscured by smoke from the wildfires in the north and west.
Aug 8, 2021 near Superior, CO
Looking east from the top of the hill, back to the Coalton Trailhead and car park.
Aug 8, 2021 near Superior, CO
loading

Weather


Current Trail Conditions

All Clear 2 days ago
Add Your Check-In

Check-Ins

Aug 8, 2021
Andrew Kemp
Coalton trailhead west to the car park and back. Steady climb on the way out, all downhill on the way back :) 6mi — 0h 45m
May 2, 2021
Sean Marlow
Aug 1, 2020
Holly S
First ride on my bike on flat tires. Very hard, walked some 2.8mi
Sep 10, 2019
Marc Barnes
Aug 2, 2019
Ted Graham
Straight downhill to ride taking it "backwards" on an easy day.
Sep 6, 2018
Katie Purdy
Jul 1, 2018
Jill Henske Keyes
Jun 3, 2018
Jessica W
1st ride 2.8mi
Welcome

Join the Community

Create your FREE account today!
Already have an account? Login to close this notice.

Get Started