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Open Space Preserve · Colorado

Centennial Open Space

Centennial Open Space offers a diverse landscape of rolling prairie, riparian corridors, and open grasslands, providing excellent opportunities for hiking, wildlife viewing, and birdwatching near Longmont, Colorado.

Open Space Preserve1,0544+ Trails

Designation

Open Space Preserve

Total Wilderness Area

1,054

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Centennial Open Space

Centennial Open Space offers a diverse landscape of rolling prairie, riparian corridors, and open grasslands, providing excellent opportunities for hiking, wildlife viewing, and birdwatching near Longmont, Colorado.

Wilderness Landscape & Natural Heritage

Centennial Open Space, located just northeast of Longmont, Colorado, protects over 1,000 acres of open grasslands, wetlands, and riparian habitats along the St. Vrain Creek. The area serves as an important natural refuge within the rapidly developing Front Range region. Its landscape ranges from gently rolling prairie hills to narrow creekside corridors, supporting a variety of native plant and animal species including mule deer, coyotes, numerous songbirds, and waterfowl. Historically, the land was used for agriculture and grazing before being acquired by Boulder County to preserve open space and provide outdoor recreation opportunities for residents. Today, the open space features nearly 8 miles of multi-use trails that accommodate hikers, mountain bikers, and horseback riders. Key landmarks include several scenic overlooks with views of the foothills to the west and wetlands that attract birdwatchers. The site’s accessibility from Longmont makes it a popular destination for families, dog walkers, and outdoor enthusiasts seeking a natural escape not far from urban amenities. Seasonal wildflowers bloom in spring, and the wetland areas provide critical habitat during migration periods. Centennial Open Space also plays a role in local conservation efforts, enhancing water quality in the St. Vrain Creek watershed. Visitors enjoy peaceful strolls along well-maintained trails, as well as opportunities to spot wildlife and photograph native ecosystems.

Field Guide · Open Space Preserve
Adventure Destinations

Notable Destinations Near Centennial Open Space

Scenic viewpoints, outdoor landmarks, and notable points of interest within 30 miles.

Running the Eagle Trail in Boulder★ 7.8⌖ 9 miTrail Running
Boulder County Open Space

Running the Eagle Trail in Boulder

Explore the Eagle Trail, a 5-mile loop in Boulder, CO, with moderate difficulty. Offering stunning views of the Flatirons, this trail is perfect for trail running and wildlife watching. Busy in summer, fall offers the best season for fewer crowds and colorful foliage.

Trail RunningView Details→
Running the Boulder Reservoir Loop in Boulder★ 7.4⌖ 10 miTrail Running
6300-6308 63rd St

Running the Boulder Reservoir Loop in Boulder

Explore the 2.5-mile Boulder Reservoir Loop in Boulder, CO. This easy, scenic trail is ideal for trail running and birding. Enjoy stunning views of mountains and water, especially during spring and fall.

Trail RunningView Details→
Paddling at Boulder Reservoir in Boulder★ 7.0⌖ 12 miPaddleboarding
Boulder

Paddling at Boulder Reservoir in Boulder

Paddle at Boulder Reservoir in Boulder, CO. Experience easy access for kayaking and paddleboarding with stunning Flatirons views. Rentals available on-site. Ideal for beginner-friendly water adventures and moderate crowds during summer.

PaddleboardingView Details→
Birdwatching at Walden Ponds Wildlife Habitat in Boulder★ 7.0⌖ 12 miBirdwatching
Walden Ponds Wildlife Habitat

Birdwatching at Walden Ponds Wildlife Habitat in Boulder

Explore the birdwatching trails at Walden Ponds Wildlife Habitat, located 15 minutes from Boulder, CO. With easy trails, it's a great spot for birdwatching and photography, especially during spring and fall migrations. Enjoy the quiet, scenic environment without large crowds.

BirdwatchingView Details→
Canoeing or Paddleboarding on Lon Hagler Reservoir★ 7.0⌖ 13 miCanoeing
West County Road 16E

Canoeing or Paddleboarding on Lon Hagler Reservoir

Explore canoeing or paddleboarding on Lon Hagler Reservoir, just south of Loveland, Colorado. This relaxing spot is beginner-friendly, offering a serene environment with opportunities to spot wildlife like herons and bald eagles. Permits are required, and it is accessible year-round.

Key Wilderness Highlights

✦ Riparian habitat along St. Vrain Creek rich with birdwatching opportunities✦ Scenic prairie grasslands with seasonal wildflower blooms✦ Popular multi-use trails connecting to nearby regional open spaces✦ Quiet wetland areas attracting waterfowl and migrating birds
Wilderness Recreation

Outdoor Adventures in Centennial Open Space

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in Centennial Open Space
Park Recreation

Mountain Biking

Available in Centennial Open Space
Park Recreation

Wildlife Viewing

Available in Centennial Open Space
Park Recreation

Birdwatching

Available in Centennial Open Space
Park Recreation

Photography

Available in Centennial Open Space
Park Recreation

Trail Running

Available in Centennial Open Space
Park Recreation

Dog Walking

Available in Centennial Open Space
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Centennial Open Space.

Passes & Fees

Entrance Requirements & Interagency Passes

Free public access; no permits required.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Adventure Basecamps

Gateway Towns Near Centennial Open Space

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Longmont
⌖ 2.68 miles
Gateway Basecamp

Longmont, Colorado

A vibrant hub with easy access to the Front Range's outdoor adventures, blending urban flair with rugged trails and scenic landscapes.

Summer and FallExplore Town
Berthoud
⌖ 7.69 miles
Gateway Basecamp

Berthoud, Colorado

A friendly small town offering easy access to mountain adventures and plains recreation with a relaxed, community-driven outdoor lifestyle.

Spring through Fall, with winter for snow sportsExplore Town
Firestone
⌖ 8.91 miles
Gateway Basecamp

Firestone, Colorado

A growing Colorado Front Range town offering easy access to outdoor adventures with a relaxed suburban feel and proximity to the Rockies.

Spring through FallExplore Town
Frederick
⌖ 9.55 miles
Gateway Basecamp

Frederick, Colorado

A friendly small town offering easy access to Front Range trails, regional parks, and open spaces with a welcoming community vibe and proximity to bigger adventure hubs.

Spring through Fall for hiking and biking; Winter for cross-country skiingExplore Town
Erie
⌖ 9.98 miles
Gateway Basecamp

Erie, Colorado

A vibrant Colorado Front Range town offering quick access to diverse outdoor activities, blending laid-back charm with year-round adventure opportunities.

Spring through Fall for hiking and biking; Winter for snow sports nearbyExplore Town
Lyons
⌖ 10.70 miles
Gateway Basecamp

Lyons, Colorado

A small town with a big heart for outdoor lovers, providing easy access to the Rockies and the serene landscapes of Northern Colorado.

Spring, Summer, and FallExplore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Centennial Open Space

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.

12 bookable experiences

Availability, pricing, meeting details, and fulfillment are provided by the applicable operator or booking partner.