Boulder Trail Closures & Conditions
Love the trails and keep your drivetrain happy
Love the trails and keep your drivetrain happy.
Boulder Trail Closures and Conditions
BMA maintains official open/closed statuses but we can’t be everywhere all the time so please contribute your own intel on the state of trails you’ve just ridden. And check out our guide to wet weather riding.
Betasso Preserve
Boulder Valley Ranch
Erie Singletrack
Hall Ranch
Heil Valley Ranch
Brainard Lake and Peaceful Valley
Lefthand OHV
Magnolia
Marshall Mesa / Doudy Draw / Flatirons Vista
Maryland Mountain
Rabbit Mountain
Valmont Bike Park
Walker Ranch
All Boulder County
Report Trail Conditions
Help keep the above trail conditions up to date by adding your report here.
Additional Trail Condition Resources
Has a trail not been updated recently? Here’s some more resources.
Trail Apps
These interactive resources are available as both websites and phone apps and display trails open for mountain biking as well as some trail conditions.
Trailforks - World's largest trail database and management system for trail associations, builders and riders. Started for mountain biking trails, now including all trail uses.
MTBProject - Born from the dream to help people get outside, MTB Project showcases thousands of routes and trails in your own backyard, across the U.S. and around the globe.
Boulder Area Trails - Designed to connect local communities, enable users to find trails by use or type, allow users to plan routes, and link users to agency websites for more information.
Colorado Trails Explorer COTREX - View trails by allowed uses on the map, browse featured routes, download offline maps, record trips and notes in the field, complete challenges to earn badges, and share your experiences with the community.
Social Media
BMA Facebook Group – Our community forum and a great place to look for and ask about trail conditions
303 Trail Monitor Facebook Group – For all trails all across the Front Range and Colorado. Find the info you’re looking for and connect with other riders.
Front Range Fattys Facebook Group – The resource for current fat (snow) biking conditions
#boco_trails – Popular Twitter tag
Marshall Mesa
Doudy Draw
Boulder Valley Ranch
City of Boulder Temporary Closures, Advisories and Fire Bans – Up to date trail closures information
OSMP Interactive Trail Map – Includes trail closures
City of Boulder Twitter – News from OSMP including trail conditions and closures
Text “OSMP” to 888-777 to sign up for updates about trail closures, muddy trails and prescribed burns
Valmont Bike Park
Betasso Preserve
Heil Valley Ranch
Hall Ranch
Walker Ranch
Boulder County Trail Closures, Notices, Alerts, & Conditions – List of trail closures
Boulder County Parks and Open Space Trail Page – List of all trails in the BCPOS system. Green check means open, red x means closed
Boulder County Parks and Open Space Twitter feed
Sign up for email or text alerts about trail closures
Erie Singletrack
Erie Parks & Recreation Facebook page – Information on what’s happening at Erie Singletrack including park closures.
Magnolia
Brainard
Peaceful Valley
Peak 2 Peak Trail Conditions Facebook page – Information on trail conditions
Fatbiking
Front Range Fattys Facebook Group – Best place for real time conditions