Home › Colorado › Denver › Lake Mary Loop Trail
Lake Mary Loop Trail
4.7 ★★★★★ 99 Google reviews · Running trail in Denver, Colorado · Posted hours
Runner's snapshot
- Surface
- Natural surface
- Loop distance
- Not reported
- Shape
- Loop
- Shade
- Not reported
- Access
- Posted hours
Confirmed from Lake Mary Loop Trail's own listing, the park or land manager's website, and runner reviews. Blank cells mean we could not verify that fact — we would rather say "not reported" than invent one. There is no Easy / Moderate / Hard rating on this page on purpose: a one-word difficulty score tells you nothing about whether a trail suits your run. Surface, distance, shade and hours do.
Park and wildlife refuge featuring wildflowers, birding, fishing, and hiking.
What runners say about Lake Mary Loop Trail
“Beautiful tranquil space and amazing for sunrises sunsets and wildlife in the big city”
Great natural park with plenty of animals like bison, deer, and rabbits. Great to walk around but remember to bring sunscreen and water because there are no fountains!
We wanted to take a long walk with our dog. We brought him not relaxing dogs aren’t allowed. Nobody really said anything while we were walking but it make sense, there are many wild animals just walking around. We didn’t see a sign no dogs allowed until we picked up a brochure with the rules and map and things.
Big park. We came after landing in Denver just to check it out. Didn't realize how big this park actually was so we did the lake Mary loop trail and headed out. We still had a bit of a drive to get to our destination but this 💯 is a go to place for outdoorsy people to check out !!
It's definitely a popular spot for long walks, running, biking, and fishing. If you want to fish, get there early enough to get some space to yourself. It's a beautiful view surrounded by wildflowers and open space. To the west, you can see the Rockies.
Trail conditions & character
“Beautiful tranquil space and amazing for sunrises sunsets and wildlife in the big city”
“Didn't realize how big this park actually was so we did the lake Mary loop trail and headed out.”
“May 13, 2024 Ashley and I went to Lake Mary at Rocky Mountain Arsenal in Commerce City Colorado”
Plan your run at Lake Mary Loop Trail
The practical stuff
- AccessPosted hours — posted hours below; park gates sometimes close earlier than the listing says
- SurfaceNatural surface — easiest on the joints and the most fun, but expect roots, rocks and mud after rain
- DistanceNot reported. Trail systems often quote total path mileage rather than a single loop, so measure the route you actually want before you drive out.
- ShadeNot reported. Assume some of it is exposed and carry water in summer.
- DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
- Websitefws.gov
- Social Instagram · Facebook
Hours
| Monday | 5:30 AM–10 PM |
| Tuesday | 5:30 AM–10 PM |
| Wednesday | 5:30 AM–10 PM |
| Thursday | 5:30 AM–10 PM |
| Friday | 5:30 AM–10 PM |
| Saturday | 5:30 AM–10 PM |
| Sunday | 5:30 AM–10 PM |
Running trails near Denver
Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.
Rocky Mountain Arsenal - Lake Ladora hike
4.7 ★★★★★ 89 reviews
Hiking area with picnic facilities known for its population of bison.
Rocky Mountain Arsenal National Wildlife Refuge
4.7 ★★★★★ 5,686 reviews
Open lakes, wetlands, prairie grasslands & woodlands home to more than 330 species.
Prairie Gateway Open Space
4.7 ★★★★★ 110 reviews
Tranquil nature area encompassing trails, prairies and a bison herd.
Fairfax Park
4.3 ★★★★☆ 545 reviews
Park featuring picnic and play areas, plus basketball and tennis courts, a baseball field, and a playground.