Trails

Looking for a place to find everything you need to know about Boulder County trails which allow mountain biking? Look no further for descriptions, suggested routes, and trail conditions. Boulder Mountainbike Alliance created this handy dandy trail guide so people who enjoy trails - whether they are mountain biking, hiking, trail running, or horse riding - can get the skinny on Boulder's beautiful singletrack.

How We Organize the Trails Section

Trail Descriptions

Everything you wanted to know about each individual trail is here - ratings, conditions, ride description, maps, GPS files, you name it. We've broken down the trails by trail system (e.g. Hall Ranch, West Magnolia).  Please help us keep the trail conditions current - update trail conditions on a trail page, or over at the master Trail Conditions page.

Trail Conditions

Check out the conditions for all Boulder County mountain-bikeable trails in one fell swoop.  It's organized by trail area, so you can see "dang, West Mag is still snowed in, but Walker is looking saaa-weet!"

Big Rides!

If you are new to the area, or jonesing for a new way to link up trails, check out the Big Rides! section.  BMA brings you a bunch of suggested rides that you can follow. We have included some classics as well as local favorites to get you on the best trails in the county.

Trail News and Alerts

Whenever BMA gets some info on stuff affecting trails, be it a community event, construction, or a trail work day, we'll pass the info along to you through the Trail News section.

Trail Ratings Guide

How hard is the Bitterbrush Trail? Can I drag a kid trailer behind my bike on Marshall Mesa? How good is the flow of Picture Rock Trail? What about the scenery? There's no shortage of conflicting opinions about how hard, or even how good, different trails are. After all, one rider's lung-busting is another rider's lung pudding. We've created a pretty darn awesome trail rating system to help you find the trails that match the experience you're after.

Trail Etiquette

If you live in Boulder County, you know that this is one of the most beautiful places in the world (okay, we might be just a bit biased). Recreating in open space is actually a privilege that we have earned through the last decades of crazy hard work to gain acceptance from the City, County and U.S. Forest Service. The biggest thing that worries people about mountain bikers is that we're not respectful or in control. Let's prove otherwise!  Read more about trail etiquette to get the real skinny.

Trail Building / Trail Work

Did you come here because you're interested in building or maintaing trails? Head on over to our trail work area for the beta on that activity.