Where to go fat biking this winter
Groomed miles, trail passes, live grooming reports and rentals for winter fat bike trails, state by state. Every fact sourced and dated.
Start with Minnesota →Every trail on one map
GroomedPartly groomedPackedPlowedUngroomedOpen to bikesTap a pin for details
States
Minnesota28 trail systemsMichigan28 trail systemsWisconsin20 trail systemsColorado28 trail systems
VermontComing soon
New HampshireComing soon
MaineComing soon
MassachusettsComing soon
UtahComing soon
IdahoComing soon
WashingtonComing soon
OregonComing soon
AlaskaComing soon
MontanaComing soon
Fat biking basics
Fat biking is mountain biking on snow, on tires roughly 4 to 5 inches wide run at very low pressure. Clubs and Nordic centers groom singletrack for it, packing the snow firm enough to ride.
- Tires and pressure: land managers ask for tires at least 3.5–3.8 inches wide at 10 psi or less. Michigan's DNR says no more than 4 psi; Minnesota's says often under 8.
- The one-inch rule: if your tire leaves a rut deeper than an inch, the trail is too soft. Turn around and come back when it firms up.
- Timing: ride cold mornings after grooming has set up overnight. Warm afternoons and fresh snow turn groomed trails to mush.
- Where not to ride: stay off groomed ski tracks and snowmobile trails unless they're signed for bikes. Skier and snowmobiler fees pay for that grooming.
- Passes: many Nordic centers and some county trails charge a day pass. Each trail card here says whether one is listed.
Sources: Minnesota DNR, Michigan DNR, and the state pages' rules sections.
How it works
- One card per trail system. It shows groomed miles, whether you need a pass, and who manages it.
- Live report link. Grooming changes after every snowfall, so we link straight to the club or park report and never guess.
- Every fact has a source. Each listing links to where the info came from and when we checked it.