Marshall Road Open Spaces

Superior, Colorado

A beginner and recovery-friendly mountain bike route near Superior through open space connecting to Eldorado Canyon, with a canal bridge start, a descent to Highway 93, and optional loop via jeep road.

Coalton Trail

Boulder, Colorado

A mild, mostly flat connector trail near Boulder with one short steep hill — useful for linking the Meadowlark Trail and High Plains Trail.

High Plains Trail

Superior, Colorado

Non-technical high plains singletrack west of Superior connecting Coalton Trail to Marshal Mesa, with prairie grass, wildflowers, Flatirons views, a cool ditch crossing, and fast flowing new trail segments.

Dirty Bismarck

Boulder, Colorado

A classic mountain bike loop on smooth gravel and mild singletrack — an easy technical ride with a great aerobic punch if you push the pace through Boulder's greenbelt trails.

Marshall Mesa Area

Boulder, Colorado

A mix of single and doubletrack with minimal climbing and no technical sections — smooth enough by day and perfectly suited for a mellow night ride.

CU Dirt Jumps

Boulder, Colorado

A compact 0.75-mile jump network with dirt jumps for all levels — from beginners catching their first air to advanced riders launching big.

Greenbelt Plateau

An extremely mild coarse-gravel trail with gentle climbs and almost no rocks — ideal for introducing kids to off-road riding or shaking off road legs.

Flatirons Vista

A quick, smooth trail near Boulder with great Flatirons views throughout — connects easily to Dowdy Draw, Community Ditch, and the broader Boulder trail network for a longer ride.

Doudy Draw Trail

Boulder, Colorado

A 1.7-mile trail meandering through open ponderosa pine savannah south of Boulder — connecting to Flatirons Vista and the South Spring Brook Loop Trail.

Chapman Drive

Boulder, Colorado

A 940-foot climb up the backside of Flagstaff Mountain on a 1930s CCC dirt road, with vintage stone bridges and views north to Longs Peak — downhill access added in April 2013.

Colorado Hills Trail

Westminster, Colorado

A mostly doubletrack trail looping around a small reservoir near Westminster — nothing flashy, but a decent after-work ride or a good intro route for beginners exploring Colorado Hills.

Coal Creek Trail

Erie, Colorado

A 10-foot-wide graded trail along Coal Creek, lined with trees, passing a golf course, and featuring livestock gates and horses along the way — great for families.

Bald Mountain Trail

Boulder, Colorado

A short, steep trail on Bald Mountain with a spectacular summit view — ride counter-clockwise to avoid the technical uphill section, and keep an eye out for mountain lions.

Boulder Valley Ranch

Boulder, Colorado

Dirt road, doubletrack, and singletrack wind through a working cattle ranch near Boulder, with good plains and mountain views and a connection to Boulder Reservoir via Eagle and Sage trails.

Lobo Trail

Longmont, Colorado

A graded double-track trail (with some paved greenway) following train tracks diagonally across the Front Range from Longmont to Boulder.

Hall Ranch

Boulder, Colorado

A physically and technically demanding loop near Boulder that climbs through rough singletrack, a valley meadow, and switchbacks on Bitterbrush and Nelson Loop trails.

North Table Mountain

Golden, Colorado

Figure-8 doubletrack and singletrack loops across the Table Mountain mesa near Golden, with steep rocky sections, a hidden waterfall near the top, and great views — grab a map at the kiosk.

Mountain Lion Trail

Golden, Colorado

A classic clockwise Golden loop on the Mountain Lion trail past a pond, an old settlement, rocky creek crossings, and a summit descent — stunning range terrain at Jefferson County Open Space.