Rocky Mountain Arsenal National Wildlife Refuge wilderness guide
National Wildlife Refuge · CO

Rocky Mountain Arsenal National Wildlife Refuge

The Rocky Mountain Arsenal National Wildlife Refuge is a restored wildlife habitat near Denver, offering extensive trails and abundant opportunities to see native and migratory animals within a unique urban conservation area.

National Wildlife Refuge15,000+4+ Trails

Designation

National Wildlife Refuge

Total Wilderness Area

15,000+

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Rocky Mountain Arsenal National Wildlife Refuge

The Rocky Mountain Arsenal National Wildlife Refuge is a restored wildlife habitat near Denver, offering extensive trails and abundant opportunities to see native and migratory animals within a unique urban conservation area.

Wilderness Landscape & Natural Heritage

Located just northeast of Denver, Colorado, the Rocky Mountain Arsenal National Wildlife Refuge spans reclaimed land once part of a chemical weapons manufacturing site. Transformed over decades, the refuge now covers over 15,000 acres of prairie, wetlands, and ponds, providing critical habitat for more than 330 species of wildlife, including bison, deer, coyotes, and over 190 bird species. The area plays an important ecological role as one of the largest urban refuges in the United States. Visitors can explore more than 20 miles of multi-use trails for hiking, biking, and wildlife observation, with seasonal guided tours and educational programs available. Significant landmarks include the bison herd enclosures, the waterfowl viewing areas, and several historic structures reminding visitors of the site's former military use. The refuge’s proximity to Denver offers a unique opportunity to experience nature, wildlife photography, and interpretive activities without traveling far from the city. It is managed by the U.S. Fish and Wildlife Service, emphasizing habitat restoration, public education, and coexistence between urban development and wildlife conservation.

Field Guide · National Wildlife Refuge
Adventure Destinations

Notable Destinations Near Rocky Mountain Arsenal National Wildlife Refuge

Scenic viewpoints, outdoor landmarks, and notable points of interest within 60 miles.

Key Wilderness Highlights

✦ Bison Herd Viewing Areas✦ Diverse Wetland Ecosystems with Migratory Birds✦ Historic Military Facilities Preserved✦ Multiple Trailheads Providing Easy Access from Denver
Wilderness Recreation

Outdoor Adventures in Rocky Mountain Arsenal National Wildlife Refuge

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

Park Recreation

Hiking

Available in Rocky Mountain Arsenal National Wildlife Refuge
Park Recreation

Wildlife Viewing

Available in Rocky Mountain Arsenal National Wildlife Refuge
Park Recreation

Bird Watching

Available in Rocky Mountain Arsenal National Wildlife Refuge
Park Recreation

Biking

Available in Rocky Mountain Arsenal National Wildlife Refuge
Park Recreation

Photography

Available in Rocky Mountain Arsenal National Wildlife Refuge
Park Recreation

Environmental Education

Available in Rocky Mountain Arsenal National Wildlife Refuge
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Rocky Mountain Arsenal National Wildlife Refuge.

Passes & Fees

Entrance Requirements & Interagency Passes

Free public access; no permits required for day use

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 Rocky Mountain Arsenal National Wildlife Refuge

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

Commerce City, Colorado
⌖ 4.76 miles
Gateway Basecamp

Commerce City, Colorado

Commerce City offers easy-access outdoor fun along the South Platte River with walking, biking, and paddling opportunities in a practical urban-friendly setting. Ideal for local explorers seeking natural escapes close to Denver.

Spring through Fall
Explore Town
Aurora, Colorado
⌖ 6.74 miles
Gateway Basecamp

Aurora, Colorado

Aurora is your gateway to adventure with hiking trails, paddling spots, and birdwatching experiences. It's a perfect balance of urban amenities and access to Colorado's natural beauty.

Spring and Fall
Explore Town
Thornton, Colorado
⌖ 7.29 miles
Gateway Basecamp

Thornton, Colorado

Thornton, Colorado, is a convenient outdoor hub with accessible hiking, biking, and paddling spots near reservoirs and open spaces. Ideal for family-friendly adventures and nature walks, it offers a quiet base close to Denver and the foothills.

Spring to Fall
Explore Town
Delgany, Colorado
⌖ 7.96 miles
Gateway Basecamp

Delgany, Colorado

Delgany, Colorado offers peaceful mountain adventure with excellent hiking, biking, paddling, and winter activities just minutes from town. Ideal for outdoor lovers seeking quiet trails and natural beauty.

Late Spring through Early Fall
Explore Town
Northglenn, Colorado
⌖ 8.75 miles
Gateway Basecamp

Northglenn, Colorado

Northglenn is a convenient outdoor hub near Denver with easy access to biking, hiking, paddling, and wildlife watching. Its trails and parks provide great family-friendly adventures and close mountain day trips.

Spring through Fall
Explore Town
Denver, Colorado
⌖ 9.61 miles
Gateway Basecamp

Denver, Colorado

Denver is a dynamic city sitting at the base of the Rockies, perfect for hiking, biking, and skiing. With nearby National Parks and excellent amenities, it's an outdoor enthusiast's dream.

Summer and Winter
Explore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Rocky Mountain Arsenal National Wildlife Refuge

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

2 Hour Axe Throwing
ADVEXPEDITION
Northglenn, Colorado
Axe ThrowingADV Bookable

2 Hour Axe Throwing

Looking for a fun and unique group activity in Colorado? Join Lizzie's Axe Throwing in Northglenn for a lively 2-hour session where beginners and pros alike can compete, socialize, and enjoy drinks in a welcoming environment.

Axe ThrowingCertified Outfitter
Bookable OnlineBook Trip
An Hour at Lizzie’s: Northglenn’s Down-to-Earth Axe Range
ADVEXPEDITION
Northglenn, Colorado
Axe ThrowingADV Bookable

An Hour at Lizzie’s: Northglenn’s Down-to-Earth Axe Range

One-hour sessions at Lizzie’s Axe Throwing in Northglenn pair coached instruction with an upbeat, spectator-friendly venue—this guide distills what to expect and how to plan.

Axe ThrowingPT2HCertified Outfitter
Bookable OnlineBook Trip
Titanic Tea
ADVEXPEDITION
Denver, Colorado
History TourADV Bookable

Titanic Tea

Explore the historic home of Titanic survivor Molly Brown and enjoy a delightful high tea in Denver. Discover the story of resilience paired with elegance in this unique private experience.

History TourCertified Outfitter
Bookable OnlineBook Trip
Two Hours Walking RiNo: A Close Look at Denver’s Northside Murals
ADVEXPEDITION
Denver, Colorado
Walking TourADV Bookable

Two Hours Walking RiNo: A Close Look at Denver’s Northside Murals

A focused, two-hour walking tour of the northern RiNo Art District that traces the stories behind roughly 25–35 murals and the artists who made them, useful for planning time, pace, and what to bring.

Walking TourPT2HCertified Outfitter
Bookable OnlineBook Trip
One Day Beginning Stained Glass Class
ADVEXPEDITION
Denver, Colorado
WorkshopADV Bookable

One Day Beginning Stained Glass Class

Explore the vibrant craft of stained glass in this hands-on one-day workshop in Denver. Perfect for beginners, create your own stunning piece and take home a new skill in just a few hours.

WorkshopCertified Outfitter
From$225
Book Trip