Rocky Mountain Arsenal National Wildlife Refuge
Grassland lakes, roaming bison, and easy trails unfold just outside Denver at this free urban wildlife refuge, where an auto tour, seasonal fishing, and abundant birdlife make for a quick nature escape.
Type of Area
National Wildlife Refuge
Address
Nearest Town
Denver
Key Features
Park Size
15,988 acres
Highest Point
5,340 ft (1,628 m)
Major Wildlife
Bison; Bald Eagles; Mule Deer; Coyotes; Prairie Dogs; Burrowing Owls; Waterfowl
Miles of Trail
20 miles
Popular Activities
Wildlife Drive Auto Tour; Hiking; Wildlife Viewing; Photography; Seasonal Fishing; Bicycling on Select Trails; Archery Range
Scenic Views
Henderson Hill overlook; Lake Ladora; Lake Mary; Wildlife Drive pullouts
WiFi Access
Limited
Best Time to Visit
Year-Round
Overview
An urban prairie refuge where restored grasslands, lakes, and wildlife thrive on former Army lands east of Denver.
Maps
Maps
Download the official map and use the trail-specific map pages to plan lake loops, overlooks, and the auto tour.
Entrances & Fees
Park Entrances
Rocky Mountain Arsenal National Wildlife Refuge offers year-round access to prairie wildlife, lakes, and 20 miles of trails. Main vehicle entry is at the Visitor Center; there are also additional public access points along the south and northeast edges of the refuge.
Fees & Passes
Entry is free; fishing requires a state license and a refuge fishing fee or season pass.
Activities
Accessibility & Seasonal Info
Accessibility
Most trails and facilities are accessible, with a few exceptions noted on the official map.
Seasonal Access & Weather
Open daily with extended evening hours in summer; some trails have seasonal closures.
Seasonal Closures
Seasonal Closures
Expect occasional area or trail closures for wildlife and habitat protection.
History & Culture
History & Culture
From wartime manufacturing site to urban wildlife sanctuary and community learning hub.
Geology & Ecology
Geology & Ecology
Shortgrass and mixed-grass prairie dotted with lakes and riparian strands supports wide-ranging wildlife.
Regulations & Considerations
Regulations & Considerations
Know the rules to protect wildlife and keep your visit safe and enjoyable.