Louisville · The bike guide
◗ Part of Trazo's Denver & Boulder coverage →

Bike Louisville,
Coal Creek to Main.

The Coal Creek Trail runs car-free clear across town and links Louisville to Superior, Lafayette, and the LoBo bikeway toward Boulder. Davidson Mesa serves up the classic Flatirons view, and award-winning historic Main Street is the perfect finish. Plan a low-stress route or a distance loop.

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The guide

Riding Louisville

Louisville's riding centers on the Coal Creek Trail — a flat, car-free corridor that ties the town to its neighbors and the wider Boulder County path network — plus open-space mesas with front-range views and one of the best small downtowns in Colorado. Here's the backbone.

~8 PAVED MI

Coal Creek Trail

The spine — a flat, car-free path along Coal Creek across town, connecting west to Superior and east to Lafayette and the regional network.

~12 PAVED MI

LoBo Trail connection

Link from the Coal Creek corridor onto the US-36 / LoBo bikeway for a mostly separated ride into Boulder.

VIEW

Davidson Mesa Open Space

The iconic Flatirons-view overlook above town — open-space paths and the postcard panorama that defines the area.

~3 PAVED MI

Harper Lake & Aquarius Trail

A calm lake loop and neighborhood connector tying into the Coal Creek Trail — easy, scenic, family-friendly.

DESTINATION

Coal Creek to Erie

Follow the trail east and it carries you toward Lafayette and Erie — a long, flat one-way option across the county.

GRAVEL

Marshall Mesa connection

Tie south and west toward Marshall Mesa's open-space trails for a dirt loop with big views.

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 →