Rocky Mountain Arsenal, Colorado - Things to See and Do

Things to see and do in Rocky Mountain Arsenal, Colorado

Visited February 2026

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Rocky Mountain Arsenal National Wildlife Refuge: Colorado’s Urban Wildlife Escape

Rocky Mountain Arsenal National Wildlife Refuge is one of Colorado’s most surprising outdoor destinations. Located just northeast of downtown Denver, this 15,000-acre refuge transforms former industrial land into thriving prairie, wetlands, and wildlife habitat. For travelers searching for wildlife viewing near Denver, scenic hiking trails, and unique Colorado nature experiences, the Rocky Mountain Arsenal offers an unforgettable escape just minutes from the city.

We visited the Rocky Mountain Arsenal National Wildlife Refuge on 2/19/2026. While driving the 11-mile auto tour route, we saw large numbers of deer and bison.

From Arsenal to Wildlife Refuge

The land that is now the Rocky Mountain Arsenal National Wildlife Refuge once served as a chemical weapons manufacturing site during World War II and later as an industrial facility. In one of the most remarkable environmental turnarounds in the country, the area was restored and designated a national wildlife refuge in 1992.

Today, the refuge stands as a powerful example of conservation and renewal, attracting outdoor enthusiasts, photographers, and families looking to explore Colorado’s natural beauty without leaving the Denver metro area.

Wildlife Viewing Near Denver

One of the biggest draws of Rocky Mountain Arsenal is its abundant wildlife. The refuge is home to more than 330 species, including:

American bison
Mule deer
White-tailed deer
Coyotes
Bald eagles
Prairie dogs

The reintroduced bison herd is a highlight for many visitors. Seeing these iconic animals grazing against a backdrop of prairie grass and distant mountain views creates a uniquely Colorado experience. Wildlife viewing is especially popular in the early morning and late afternoon, when animals are most active.

Scenic Driving and Hiking Trails

The refuge offers both driving and walking options. The Wildlife Drive is an 11-mile auto tour route that allows visitors to explore the landscape comfortably while spotting animals along the way.

For those who prefer to get out and explore, more than 20 miles of hiking and biking trails wind through grasslands and wetlands. Popular trails include the Lake Mary Trail and the Lake Ladora Trail, both offering peaceful water views and birdwatching opportunities.

Because of its wide-open spaces, the refuge provides excellent photography opportunities, especially at sunrise and sunset.

A Family-Friendly Outdoor Experience

Rocky Mountain Arsenal is ideal for families and casual outdoor explorers. The visitor center features educational exhibits about prairie ecosystems, wildlife conservation, and the site’s history. Ranger-led programs and seasonal events make it a great destination for learning about Colorado’s natural environment. Unlike more rugged mountain parks, the refuge’s relatively flat terrain makes it accessible to visitors of all ages and fitness levels.

Best Time to Visit Rocky Mountain Arsenal

The refuge is open year-round, but spring and fall offer mild temperatures and excellent wildlife viewing conditions. Summer brings warm weather and active birdlife, while winter offers a quieter experience with crisp prairie views.

Why Visit Rocky Mountain Arsenal National Wildlife Refuge?

Rocky Mountain Arsenal National Wildlife Refuge proves that wild spaces can thrive even near major cities. With bison herds, scenic trails, wetlands, and educational programs, it offers a rare blend of urban access and natural beauty.

For anyone visiting Denver or exploring Colorado’s Front Range, Rocky Mountain Arsenal is a must-see destination that highlights conservation, wildlife, and wide-open prairie landscapes just minutes from downtown.

Thinking of visiting? Viator offers numerous tours in Colorado. Click here for details. vi.me/ydEXX