New Trail in Superior - Completes Dirty Bismarck
Submitted by David on

New Trail in Superior (looking SE) - Photo Credit: 303Cycling
With all the talk and news about trail access and new trails in Boulder, Superior is quietly becoming a great biking town with out alot of fan fair. If you have not seen the bike park they are building you should check it out.
A new trail, in old town Superior, opened recently and I finally got a chance to ride it today. It completes what is known as the Dirty Bismarck (or Dirty Morgul). Basically a dirt version of the Morgul Bismarck. The Dirty Bismarck consists of the following trails:
- Mayoffer-Singletree Trail
- Meadowlark Trail
- Coalton Trail
- High Plains Trail
- Greenbelt Plateau
- Community Ditch
- Cowdrey Draw
The new trail starts at the corner of 3rd Avenue and Thomas St in Superior and heads south toward the Colition Trail (McCaslin and Coalition Drive). The trail is super smooth and today I road my road bike on the trail. I didn't get an exact length but if I were to guess its probably a couple miles long.
I have now completed the Dirty Bismarck loop. I parked at the new trail head at the round-about at McCaslin and Coalition Drive. The complete loop is almost 15 miles with an elevation gain of close 1000 feet. I am glad I used my mountain bike because a few sections are fairly rocky. Check out the trail and let us know what you think.
View 2011-03-29 12:45 in a larger map
Related Stories


18 Comments
Great Trail
Submitted by Colin Vito (not verified) on
Great trail. You can ride a full loop of Marshall Mesa and never have to ride on a road. It can get windy as all get out on the top of this trail though.
Points: 3
New Trail - Lots of Sun
Submitted by David on
This will be a great trail for the winter. Most of the trail and the complete loop is very sunny. Cant wait to do the whole loop.
Points: 2
Map
Submitted by Chris (not verified) on
Can someone map this out on Google or some other site and post on here so we know exactly how to ride the whole thing? 15 miles of dirt sound awesome to me!
Chris
Points: 0
The Dirty Biz is great. Rode
Submitted by Anonymous (not verified) on
The Dirty Biz is great. Rode it Thursday night.
Points: 2
Dirty Bismark detailed information
Submitted by Kris Thompson on
I asked around and here is what I got
http://bouldermountainbike.org/route/dirty-bismark-route
No map but it will show up there soon
BMA Rocks!
Points: 3
I rode it on a mountain bike
Submitted by David H (not verified) on
I rode it on a mountain bike today counterclockwise from the south end of the new connection at the new parking lot off the circle on McCaslin. I got 14.78 miles with one brief wrong turn on the northwest corner. Missed the turn left up the stairs to the plateau. Otherwise there are maps along the way, pretty easy route to follow-I'd never been on any of the trails before. Uploaded the file to Garmin, you can see the map here:
http://connect.garmin.com/activity/71105287
Not technical but nice views and good base miles. Almost all could be done on a cross bike, but the rocks on the plateau and NE of Marshall Lake might be tough. Might try it though.
Points: 3
Thanks for the Dirty Bismark Map
Submitted by David on
People have been asking for a map and now they have a good one. I have done the loop on my singlespeed cyclocross bike. It is definitely doable but a little rocky in places.
Points: 2
Portage that $hit
Submitted by Anonymous (not verified) on
That particular BHF (baby head forest) is cross-bikeable in the sense that one can ride it, but it is zero, actually negative fun. Shoulder that ridley, hup-hup!! The only section that needs love is the coalton trail. Quite possibly the worst trail design ever (we actually refer to the coalton trail as the Worst Trail Ever when coordinating rides!) It is basically a gravel bed that washes out after every major storm. Needs some switchy-back/water bar type action.
Points: 5
Consider that $hit Portaged.
Submitted by David H (not verified) on
Consider that $hit Portaged. Did it this week. Coalton sucks-agreed. Downhill with a tailwind is downright stupid at 30+ mph.
Points: 0
This trail sucks! Why build
Submitted by Anonymous (not verified) on
This trail sucks! Why build an 8ft wide gravel path?
Points: 2
Pages