• Xeric Tall Grass 205x135

    Xeric tallgrass prairie

    Remnants of this rare habitat are preserved at the Refuge.

  • Lindsay Barn Reflection

    Historic Lindsay Ranch

    The area known as the Lindsay Ranch was once part of the 1800s homestead era.

  • Preble's meadow jumping mouse 220x120

    Preble's meadow jumping mouse

    The Refuge is home to the Preble's meadow jumping mouse, which is listed on the federal threatened species list.

General Information

Rocky Flats National Wildlife Refuge opened 10.3 miles of trails on Saturday, September 15, 2018

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Rocky Flats National Wildlife Refuge opened 10.3 miles of trails to visitors on Saturday, September 15, 2018. This 5,237-acre Refuge is home to 239 migratory and resident wildlife species including prairie falcon, mule and white-tailed deer, elk, coyotes, songbirds, hawks, and the federally threatened Preble's meadow jumping mouse. Over 630 species of plants and a variety of wildflowers bloom here spring through fall. Xeric tallgrass prairie habitat is found on the Refuge, one of the largest remaining areas of this globally rare ecosystem. Visitors can enjoy these trails open year round for wildlife viewing, photography, and to connect with nature. Designated Refuge trails are open for hiking, bicycling, cross country skiing, snowshoeing, and horseback riding. Refuge trails meander through mixed and tallgrass prairie. Trail surfaces are crushed gravel or dirt. Click on the link below for a map of the Refuge trails. To protect wildlife and habitat, visitor access is limited to designated trails and roads only. All other Refuge lands and staff roads are closed to visitor entry. When visiting the Refuge, please keep the following rules in mind: Observe all posted signs and regulations; Park only in designated areas as shown on the map; Assistance dogs are welcome and must be on a leash at at all times. All other pets are prohibited. The Refuge's main entrance is located at mile marker 3 on the south side of Highway 128. There is a gravel parking lot for vehicles and horse trailers. For more information please call the Colorado Front Range National Wildlife Refuge Complex at 303-289-0930.

Rocky Flats National Wildlife Refuge Trails Map

Rocky Mountain Greenway

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The Rocky Mountain Greenway will connect Rocky Mountain Arsenal National Wildlife Refuge and Rocky Mountain National Park via Two Ponds and Rocky Flats National Wildlife Refuges.

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Visitor Information and Hours


The Refuge is located at 16170 West 120th Avenue, Golden, CO 80403. The Refuge is open from sunrise to sunset seven days a week (closed on Thanksgiving, Christmas and New Year's Day). Trails are open year-round for hiking, bicycling, cross country skiing, snowshoeing, and horseback riding.

Rocky Flats National Wildlife Refuge Trail Map

About the Complex

Rocky Mountain Arsenal Complex

Rocky Flats National Wildlife Refuge is managed as part of the Rocky Mountain Arsenal Complex.

Read more about the complex
About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America's fish, wildlife, and plants.

Learn more about the NWRS