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Boulder Open Space adventures

Boulder Open Space Adventures

Boulder Open Space offers an array of outdoor activities amidst the stunning landscapes of the Flatirons and foothills.

45,000+
Acres Protected
150+
Miles of Trails
5,300,000
Annual Visitors
1978
Year Established

Popular Activities

Plan Your Visit

Everything you need to know to prepare for an unforgettable trip to Boulder Open Space.

Entrance Requirements

No entrance fee required; parking fees apply at certain trailheads.

Best Time to Visit

Spring and fall offer moderate temperatures and vibrant foliage.

Visitor Information

Chautauqua Ranger Cottage provides maps and information.

Getting There

Accessible via Colorado State Highway 93 and US-36; limited winter closures.

Weather & Climate

The area experiences mild to warm summers with frequent thunderstorms; winters are cold with occasional snow, especially in higher elevations.

Conservation Efforts

The region faces threats from urbanization pressure and visitor overuse, requiring ongoing conservation efforts to maintain ecosystems.

Camping in Boulder Open Space

Find the perfect spot to stay overnight and immerse yourself in the details.

Boulder Mountain Park Campground

Primitive
Reservations Required

Located near the Flatirons, requiring a short hike in from designated parking.

West Magnolia Campground

Backcountry
Reservations Required

Offers remote camping in forested areas accessible via trail.

Top Trails

Chautauqua Trail

Moderate
3.5 miles

Provides stunning views of the Flatirons and leads to multiple other trail connections.

Mesa Trail

Moderate
6.9 miles

A popular connector trail along the foothills combining various ecosystems.

Royal Arch Trail

Hard
3.2 miles

Features a challenging climb with a rewarding natural arch at the summit.

Gregory Canyon Trail

Hard
4.2 miles

Offers a scenic path through thick pine forest to a rocky summit with views.

Trailblazer Tips

Arrive early to find parking, especially on weekends.

Wear layers as weather conditions can change rapidly.

Dogs are welcome on many trails but must be leashed.

Consider biking routes for faster access to farther trails.

Helpful Resources