Dirty Bismarck
Boulder, Colorado
Address: | ~1682 S Foothills Hwy, Boulder, CO 80305, USA |
GPS: |
39°57'14.1"N 105°13'51.7"W Maps | Directions |
State: | Colorado |
Trail Length: | 10.00 miles |
MTB Difficulty: | Easiest |
Trail Type: | Loop |
MTB Trail Type: | Doubletrack |
Mountain Bike
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). Courtesy of Singletracks.com
More Information
Add ResourceNever modify trail features. Ride trails when they're dry enough that you won't leave ruts. Speak up when you see others on the trail and always yield to hikers, horses, and others coming uphill. Always ride on the established trail.
Read MoreDirections
From Boulder, Colorado
- Head south on 19th St toward Arapahoe Ave (138 ft)
- Turn right at the 1st cross street onto Arapahoe Ave (0.4 mi)
- Turn left onto CO-93 N/BroadwayContinue to follow CO-93 N(5.1 mi)
- Turn left onto CO-170Destination will be on the left(397 ft)
Other Mountain Bike Trails Nearby
Marshall Mesa Area
Boulder, Colorado
0.0 miles SWSome single, some doubletrack. Not too much climbing and nothing technical at all, but makes a great night ride.
Mountain BikeCoalton Trail
Boulder, Colorado
1.0 miles EThis is a very mild trail from a technical standpoint, and is mostly flat other than one very steep (though short) hill. This trail isn't anything special, but it can be used to link...
Mountain BikeFlatirons Vista
1.7 miles S
A quick, easy, smooth trail. Good for testing out new tires or pedals, but not great for pounding out a lot of miles. You can use this to connect to Dowdy Draw, Community Ditch,...
Mountain BikeGreenbelt Plateau
1.7 miles S
An extremely mild, easy trail. Gentle climbs and descents on coarse gravel that's very stable. Extremely few rocks. A good trail for teaching your kids to ride off the road, or for a...
Mountain BikeDoudy Draw Trail
Boulder, Colorado
1.7 miles SW1.7 mile + 0.5 mile to intersection with Community Ditch Trail. Meanders southward along the draw to the junction with the South Spring Brook Loop Trail (2.3 miles). After the Spring...
Mountain BikeMarshall Road Open Spaces
Superior, Colorado
3.4 miles EThis trail is fairly easy except for the first climb. Take a look at the trailhead for the route you would like to take. The trail changes in several directions and make sure you...
Mountain BikeDavidson Mesa
Louisville, Colorado
3.8 miles NEThis is a small network of trails that you can link together in various ways. Most of it is pretty tame, including the steepest trail that goes off the mesa. A good ride for kids....
Mountain BikeHigh Plains Trail
Superior, Colorado
3.9 miles SEThis is a new section of singletrack that flows across the high plains West of Superior that opened this Spring (2007). There's nothing technical as the trail rolls through the plains...
Mountain BikeCU Dirt Jumps
Boulder, Colorado
4.0 miles NThis .75 mile network of singletrails / doubletrails contains numerous dirt jumps that are scattered throughout the area. It keeps me excited and interested for countless hours, and has...
Mountain BikeChapman Drive
Boulder, Colorado
5.0 miles NWA somewhat steep 940 ft elevation gain climb up the backside of Flagstaff Mountain along a disused, double track, 1930's era Civilian Conservation Corps dirt road. Highlights include...
Mountain BikeColorado Hills Trail
Westminster, Colorado
7.4 miles SEFrom trailhead head west, climbing a false flat. After a quick downhill you'll see a small reservoir. Head through the narrow gate and make a loop around the lake, then head back....
Mountain BikeBald Mountain Trail
Boulder, Colorado
8.7 miles NWThe trail is short with a really steep section, that is also short... Ride the trail CCW, about 10 times. Going CW there is a 5 foot technical section that is tough because you're...
Mountain BikeMountain Lion Trail
Golden, Colorado
10.8 miles SWIt is recommended to ride this route clockwise (due to several steep sections that are better ridden on the descent).From the trailhead, pick up the Mountain Lion trail (starts at the...
Mountain BikeCoal Creek Trail
Erie, Colorado
10.9 miles NEThe trail is a 10 foot wide graded path that runs along Coal Creek. The trail is lined by trees most of the way, goes by a golf course, and is rather serene. It's not technical in any...
Mountain BikeBoulder Valley Ranch
Boulder, Colorado
11.1 miles NA working cattle ranch that has multiple trails - some are open to bikes. Combination dirt road, doubletrack, and singletrack. There is a lot of singletrack along the dirt roads. One...
Mountain BikeNorth Table Mountain
Golden, Colorado
11.9 miles SThis trail alternates between doubletrack and singletrack as the figure 8 loops up and around the Table Mountain mesa. Signage is a work in progress as of June 2010 so grab a map at the...
Mountain BikeGolden Gate Canyon State Park
Golden, Colorado
13.4 miles SWWe rode Blue Grouse then took a right on Mule Deer some nice singletrack and kinda technical. You'll eventually get to some campsites just follow the signs for Mule Deer, from here go...
Mountain Bike 0.1-0.9 miClear Creek Whitewater Park
Golden, Colorado
13.7 miles SDedicated in 1998 and located in Golden, Colorado, Clear Creek Park is one of the most unique parks in Colorado filled with water activities such as kayaking and canoeing. It reaches a quarter...
Canoe, Hike, Kayak, Mountain Bike, Swim, WhitewaterHall Ranch
Boulder, Colorado
14.0 miles NFrom the lower parking lot, go uphill to the trailhead at the upper lot. From here it's an easy trail to follow. Follow Bitterbrush trail uphill through somewhat rough singletrack....
Mountain BikeMud Lake
Nederland, Colorado
14.8 miles WThere are two loops here; Tungstend Loop and Kinnickinnick, both of which are very short and very easy. No brutal climbs, no technical challenges - just a very easy ride around a very...
Mountain Bike