Denver · Boulder · Golden · The bike guide

Bike Denver & Boulder,
trail to trail.

Hundreds of miles of paved, car-free trails stitch the metro together — the Cherry Creek and South Platte through downtown, Clear Creek out to Golden, and the US-36 bikeway up to Boulder and Longmont. Plan a low-stress route or a distance loop across the whole Front Range.

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⚑ 8.4 mi loop71% off busy roads
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The guide

Riding Denver & Boulder

Denver, Boulder, and Golden share one of the best urban trail networks in the country — hundreds of miles of paved, car-free paths along the creeks and canals, linking downtowns, foothills, and the suburbs in between. Here's the backbone.

~40 PAVED MI

Cherry Creek Regional Trail

The spine — flat and car-free from Confluence Park in downtown Denver southeast toward Parker and Castlewood Canyon.

~35 MI

South Platte River Trail

Follows the Platte through the heart of Denver, from Chatfield Reservoir north through the suburbs — the metro's other main artery.

~20 MI

Clear Creek Trail

Runs from Golden's canyon mouth down through Wheat Ridge and Arvada to meet the Platte — the car-free link out to the foothills.

~71 MI

High Line Canal Trail

A long, winding, shaded canal path threading from Waterton Canyon across the south suburbs all the way to Aurora.

DENVER ↔ BOULDER

US-36 Bikeway & LoBo Trail

The protected corridor that connects Denver to Boulder and on to Longmont — what makes this one rideable region, not three.

BOULDER

Boulder Creek Path

Boulder's east-west spine, from the canyon mouth through downtown and the CU campus out to the plains.

Explore Denver & Boulder by town

Tap a town to open the map there, or dive into its full city guide.

Why Trazo

Built for riders who'd rather not gamble on traffic

Every street and path is graded for how calm and connected it really is — so the route you get is one you'll actually enjoy.

See what's protected

Trails, lanes, and quiet streets are color-graded by stress level — cool means calm, red means watch out.

Loops by distance

Want a 12-mile ride? Get loops that hit your target and bring you back home, not an out-and-back you have to reverse.

Busy-crossing alerts

The map flags uncontrolled crossings — busy roads with no signal — so nothing catches you off guard.

Elevation-aware

See the climb before you commit, and flip on “prefer flat” when you (or the kids) aren't in the mood for hills.

How it works

From “where do I even ride?” to rolling in three steps

Set your start & destination

Search an address, drop a pin, or use your location. Or pick “Loop ride” and just set a distance.

Pick your comfort level

Kid-friendly, relaxed, or anything-goes. Trazo biases the route toward protected paths to match — and you can drag the line to add a stop.

Ride it

Follow turn-by-turn with voice cues, see your elevation profile, find pit stops along the way, or export a GPX.

Try it now — it's free →