Dirty Bismarck Loop Trail

MODERATE 56 reviews

Dirty Bismarck Loop Trail is a 13.8 mile moderately trafficked loop trail located near Louisville, Colorado that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is best used from March until October. Dogs and horses are also able to use this trail.

Distance: 13.8 miles Elevation Gain: 902 feet Route Type: Loop

dog friendly

cross country skiing

hiking

horseback riding

mountain biking

nature trips

trail running

walking

bird watching

forest

views

wild flowers

wildlife

This mountain bike version of the famous Morgul-Bismarck bike race course, is a great loop trail near Superior, Colorado Also known as the "Happy Meal Loop," the Bismarck Dirty Loop was completed in 2011 with the addition of the Meadowlark Trail section. This trail is easily accessible by Colorado Front Range trail users and is an especially enjoyable mountain bike trail. Although challenging in a couple short sections, in general the Bismarck Dirty Loop is not a very difficult trail for mountain bikers or hikers. Other than a couple low-traffic dirt road crossings, the trail is very safe and road-free. This loop trail is good for hiking, mountain biking, horseback riding, and trail running. Portions of it are also excellent for cross-country skiing.

mountain biking
1 month ago

Arid, no trees or shade. Def do it clockwise. Lots of fun twisty descents! Early ascent is kinda monotonous gravel road. Beautiful vistas await though!

hiking
no shade
1 month ago

This was a beautiful trail. I hiked the whole thing in about 4.5 hours. only passed about a total of 20 people, more than half were mountian bikers. everyone was very friendly. The whole loop actually totals around 14.1 miles. I am a semi out of shape 250lb man and did this trail with realitive ease, no crazy inclines. i would suggest packing a gallon or more of water if your going to hike the trail. i packed 3 liters and ran out of water around mile 12.5. Not a big deal, but another liter would have gotten me there. Less than 5% of this trail is in the shade, everything else is direct sunlight. so be ready! All in all, great hike.

mountain biking
1 month ago

Cool trail with beautiful views. Heading to buy a mountain bike soon and we’ll be back. Everyone on the trail was super friendly.

trail running
1 month ago

Great trail with fairly easy elevation gain and good views!

mountain biking
2 months ago

Great ride for experienced beginner or almost intermediate Mt. Biker. Great views, scattered challenges and a perfect mix of climbing and descending. If you are working on your skills but still want to get a great workout with side of fun, this is it!

closed
5 months ago

CLOSED for mud boooo...2/26/19

trail running
7 months ago

This loop features a roughly half-marathon distance and a moderate amount of elevation change, though you could choose more or less gradient depending on the precise path you choose on the northwest end. I could count the runners I saw on one hand, whereas there were many hikers and bikers on this mild January afternoon. The views are great in many sections of the trail. It would be a tough loop to run in the summer, as there is absolutely no cover: early morning is probably the only option then. However, in the winter, it's a great long distance run.

mountain biking
11 months ago

mountain biking
Friday, August 03, 2018

This trail is a good workout. Trail had a few other bikers, a couple of runners, and a few hikers. The route consists of a lot of road and a fair amount of single track. The single track rewards you with some fun technical stuff and the roads allow you to take it a little easier. I’m from Texas so some of the climbs are steeper and longer than I’m used to but nothing too serious. Come out and enjoy.

hiking
Tuesday, July 03, 2018

Not good for hiking pretty boring scenery no cover. Pretty cute prairie dogs in the beginning

mountain biking
Sunday, May 27, 2018

Really nice ride overlooking green pastures with mountains in the background. Some of the ride is next to a stream and some is through cow fields. Nice variety!

trail running
Wednesday, July 26, 2017

Overall great trail for a 14 mile run. Can get rocky at times but not too technical. Would recommend bug spray for marshy areas. Not much cover so it can get very hot.

walking
Saturday, July 15, 2017

First time walking this trail. I feel like it's better suited for bikers or horseback riders. The wide trail offers little ground cover; and it was HOT. Easy parking.

Friday, October 07, 2016

Granted we're not bicyclists. My wife and I walked here and wanted to see something pretty and nature-oriented. Instead it's dirt and rock. One star for easy parking access, another star for the cute groundhogs.

horseback riding
Wednesday, September 21, 2016

I rode the whole trail with lots of trotting and some walk and canter it took us just over three hours. Trail was wide and flat in most areas. There were some cows and my horse thought that was very interesting. Great exercise ride for the horse and relaxing for me.

horseback riding
Monday, August 22, 2016

We rode horseback the entire 14.5 mile trail. Had a lot of fun, but most of the trail is very hard packed and ROCKY. We encountered many mountain bikers, but everyone was extra-courteous. We were able to canter a little on the northeastern most section, but the horses walked most of the loop. If you have a LARGE RIG be careful pulling in and out of the parking area. My 29' trailer was too big to pull in the usual way because of the landscape rocks and median at the entrance. We ended up pulling in against the one-way directions, and since everyone stopped to watch, it worked out.

mountain biking
10 days ago

hiking
10 days ago

mountain biking
26 days ago

hiking
1 month ago

hiking
1 month ago

mountain biking
1 month ago

hiking
1 month ago

mountain biking
1 month ago

mountain biking
2 months ago

mountain biking
2 months ago

hiking
2 months ago

mountain biking
2 months ago

hiking
2 months ago

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