Green Mountain via Gregory Canyon
A loop to the top of Boulder's most iconic mountain.
Severe Hiking
- Distance
- 7.7 km
- Ascent
- 707 m
- Descent
- 707 m
Hiking in Boulder
Go hiking in Boulder with curated guides of the best hikes across the region. With over 16 3D trail maps in FATMAP, you can easily discover and navigate the best trails in Boulder.
No matter what your next adventure has in store, you can find a guide on FATMAP to help you plan your next epic trip.
Get a top hiking trail recommendation in Boulder from one of our 3 guidebooks, or get inspired by the 16 local adventures uploaded by the FATMAP community. Start exploring now!
Hiking Routes in Boulder
Mount Sanitas
A quintessential Boulder hiking route.
Severe Hiking
- Distance
- 4.9 km
- Ascent
- 386 m
- Descent
- 386 m
Mesa Trail
A spectacular but technically easy trail hanging high above Boulder
Moderate Hiking
- Distance
- 11 km
- Ascent
- 416 m
- Descent
- 394 m
First and Second Flatirons
A scrambly hike to the top of the First and Second flatirons.
Severe Hiking
- Distance
- 4.3 km
- Ascent
- 444 m
- Descent
- 444 m
Royal Arch
One of the most famous hikes in Boulder, leading to a natural arch via a rough, rocky ascent.
Severe Hiking
- Distance
- 5.4 km
- Ascent
- 441 m
- Descent
- 441 m
Walker Ranch Loop
An iconic hike above Boulder.
Difficult Hiking
- Distance
- 13 km
- Ascent
- 496 m
- Descent
- 496 m
Freeway
Scramble up the Second Flatiron
Severe Hiking
- Distance
- 220 m
- Ascent
- 161 m
- Descent
- 0 m
Hiking Guidebooks in Boulder
7 routes · Hiking
Denver Day Trip: Top 7 Scenic Hikes
6 routes · Alpine Climbing · Hiking
6 of the Best Challenging Hikes near Denver
7 routes · Hiking