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Getting ready for Rocky Mountain Arsenal.

A free national wildlife refuge in Commerce City, just northeast of Denver, where you can see bison from your car on an 11-mile Wildlife Drive. The visitor center has exhibits, including one with live black-footed ferrets.

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Know before you go. The refuge doesn't list sensory supports. Here's what it says about the drive, the bison, the trails and the rules.

Hours

Refuge: sunrise to sunset in fall, winter and spring (sunrise to 8 pm from May through July). Visitor Center: Wednesday to Sunday, 9 am to 4 pm, closed federal holidays. Closed Thanksgiving, Christmas and New Year's Day; on Christmas Eve and New Year's Eve, last entry is 11:30 am.

6550 Gateway Road, Commerce City 80022

What to expect

  • Rules

    “Visitors must stay in their vehicle when viewing bison.” “Stay on trails.” “Only service dogs are allowed at the Refuge.”

  • Space

    “Take the 11-mile Wildlife Drive. Listen to the Wildlife Drive audio tour along the way.” The refuge suggests 45 to 60 minutes for it.

  • Space

    “Hike the 1 mile Discovery Trail starting at the Visitor Center back patio,” or the “Lake Mary Loop Trail (0.6 miles) with a boardwalk and piers overlooking the water.”

  • Smell

    This fall the refuge is doing prescribed burns for several weeks, between 9 am and 4 pm, weather permitting. “Smoke may be visible for several miles beyond the refuge, and nearby communities may smell smoke.”

  • The Wildlife Drive lets a kid who doesn't want to walk still see the animals.
  • The visitor center and ferrets are closed Monday and Tuesday, so pick Wednesday to Sunday if those matter.

In their own words: fws.gov. Checked Sun, Oct 25, 2026. Something wrong or out of date? Tell us · How we check

Visual schedule

Wildlife Refuge

  • Drive to the park
  • Park the car
  • Look out the window
  • See the bison
  • Use the binoculars
  • Go on a hike
  • See the birds
  • Eat a snack
  • Walk to the car
  • All done
Make it yours →

Ask before you go

  • sensory kits or headphones to borrow
  • a quiet room
  • how busy weekends get
  • where the restrooms are along the drive
  • how close the bison come to the road
  • which times are least busy
  • whether the visitor center gets loud
Call 303-289-0930
More about Rocky Mountain Arsenal National Wildlife Refuge
  • “Visiting the Refuge is FREE!” You don't need a pass.
  • The black-footed ferret exhibit is near the visitor center back patio and keeps visitor center hours.
  • Kids can earn a Junior Ranger badge by finishing at least 4 pages of the booklet (in English or Spanish) and picking up the badge at the visitor center. “Sorry, we don't mail badges.”
  • “Take a virtual tour of the Visitor Center and Black-footed ferret exhibit before you arrive.”
  • “No swimming or wading at Refuge lakes.” “Park in designated parking lots.”
  • Visitor Center 303-289-0930, rockymountainarsenal@fws.gov.

Source: fws.gov