Hiking Trails & Parks in Mill Valley, California
167 hiking & walking trails and 4parks, recreation areas & campgrounds in Mill Valley, located in Marin County, California. Free trail map for every listing.
About Outdoor Recreation in Mill Valley, California
Mill Valley offers 167 mapped hiking trails and 4 federally managed parks within the city or nearby. Located in Marin County, California, it’s a starting point for hikers, campers, and casual nature seekers.
Explore more nearby: Marin County overview, all Marin County trails, or statewide California list.
Parks & Campgrounds in Mill Valley
Hiking Trails in Mill Valley
Curated Guides for Mill Valley
Frequently Asked Questions
Are there hiking trails in Mill Valley, Marin County, California?
Yes — we have 167 mapped hiking and walking trails in Mill Valley, Marin County, California, sourced from OpenStreetMap. Browse the full list below, with distance, elevation, and difficulty for each.
What is the best hiking trail in Mill Valley, Marin County, California for families?
Blossom Alley - SLP 65 near Mill Valley is one of the best family picks in Mill Valley, Marin County, California — easy difficulty, short enough for kids and first-timers. See the full family hiking guide below for more options.
Is there a trail map for Mill Valley, Marin County, California?
Each of the 167 trails in Mill Valley, Marin County, California has its own page with an interactive map, GPS coordinates, and a link to view it on OpenStreetMap — no app or account needed.
What parks and recreation areas are in Mill Valley, Marin County, California?
Mill Valley, Marin County, California has 4 parks, recreation areas, and federal facilities in our index (1 classified as recreation areas). Each listing includes activities, photos where available, and directions.
Can I go camping in Mill Valley, Marin County, California?
Yes — 1 of Mill Valley, Marin County, California's parks have mapped campsites, from first-come sites to Recreation.gov reservations. The largest is Haypress Campground with 6 sites. See the full campgrounds guide below for the ranked list.
Where can I find hiking trails and parks near Mill Valley, Marin County, California?
Browse all hiking trails, walking trails, parks, and campgrounds across Marin County for more options beyond Mill Valley, Marin County, California.
From the OutsideAtlas Blog
Photo: Joshua EarleThe 10 Longest Hiking Trails in California, Ranked
California's longest mapped hiking trails, ranked by distance with notes on what makes each route worth the commitment.
Photo: Sergei AkulichCalifornia's 10 Most Punishing Trails by Elevation Gain
Steep is hard. These are the ten California trails with the most total elevation gain — quad-burners earned by hard climbing.
Photo: Maddi BazzoccoThe Best Beginner-Friendly Hikes in California
Ten gentle, well-marked California trails perfect for first-time hikers, families, or recovery days.
Photo: Holly MandarichThe 10 Most Challenging Hikes in California
California's ten hardest hikes — expert difficulty, big mileage, or serious exposure. Reserved for experienced hikers.
Photo: Diego LozanoThe Best National Parks & Recreation Areas in California
Federal parks and recreation areas in California ranked by what they actually offer hikers and campers, not just popularity.
Photo: Joshua EarleBest Waterfall Hikes in California: 10 Trails to See Falls Up Close
California's best hikes to named waterfalls — from short family-friendly viewpoints to all-day cascade chasing.