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Old Mill Park
4.8 ★★★★★ 168 Google reviews · Running trail in Mill Valley, California · Open 24 hours
Runner's snapshot
- Surface
- Not reported
- Distance
- Not reported
- Shape
- Not reported
- Shade
- Not reported
- Access
- Open 24 hours
Confirmed from Old Mill Park'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.
Pet-friendly greenspace featuring a creek, a playground and redwood trees.
What runners say about Old Mill Park
“It is great fun to walk among the old grove Redwoods, check out the creek, hike, and enjoy the beautiful shaded area when much of Marin is hot.”
“Just a few minutes walk away from Mill Valley town center, this park is peaceful and refreshing, with a playground and public restrooms.”
Old mill park had a nice playground surrounded by some beautiful redwoods. There is a main play structure as well as regular and toddler swings. We also really enjoyed walking on the paths among the trees. There is a parking lot and free street parking available too.
Never tire of bringing our dog here. It is great fun to walk among the old grove Redwoods, check out the creek, hike, and enjoy the beautiful shaded area when much of Marin is hot. Clean restrooms, benches, picnic tables, water fountains, creative playgrounds.
Beautiful little Park nestled amongst redwood trees and a creek. There is a nice little playground, some swings nearby, a public library nearby, and a great trail head that leads up the side of a mountain with 800 stairs. Challenge yourself!
Lovely park split in two sides: one side has the play structure, restrooms, and water fountain, the other side is across the street, closer to the mill valley library, and includes more picnic tables, the outdoor stage, and more woodsy area.
Trail conditions & character
“It is great fun to walk among the old grove Redwoods, check out the creek, hike, and enjoy the beautiful shaded area when much of Marin is hot.”
“Just a few minutes walk away from Mill Valley town center, this park is peaceful and refreshing, with a playground and public restrooms.”
“Just a few minutes walk away from Mill Valley town center, this park is peaceful and refreshing, with a playground and public restrooms.”
“The park can be crowded during the weekend and parking can be difficult cause its limited.”
“Clean restrooms, benches, picnic tables, water fountains, creative playgrounds.”
Plan your run at Old Mill Park
The practical stuff
- AccessOpen 24 hours — no gate to beat, so a 5am or a 10pm run both work
- 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.
- At the trailheadparking, restrooms, water — reported by runners
- Stroller / wheelchairReported as smooth and step-free enough for a running stroller or a chair.
- Websitemillvalleylibrary.org
Hours
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
Running trails near Mill Valley
Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.
Cascade Falls Trailhead
4.7 ★★★★★ 420 reviews
Short walk through redwood trees along a creek to a cascading waterfall.
