1
Sorich Ranch Park Open Space Preserve
Managed by Town of San Anselmo
57 acres1.5 mi of trail
Sorich/Tomahawk TrailDean Nyberg TrailSorich Park Trail
Dog rules not recorded
No trailhead mapped yet
Outdoors · San Anselmo
San Anselmo, CA parks, trails & bike paths
About 9.9% of San Anselmo is conserved land, roughly 168 acres. There are about 6.4 miles of mapped trails, and the biggest networks are in Sorich Ranch Park Open Space Preserve (1.5 mi), Bald Hill Open Space Preserve (1.1 mi), and C. Fredrick Faudé Open Space Park (0.8 mi).
Conserved land, trails, parks and bike routes in San Anselmo, measured from OpenStreetMap and USGS data.
At a glance
San Anselmo outdoors
Conserved land
9.9%
168 of 1,701 acres
Trails
6.4 mi
2.4 mi per sq mi · 4 on conserved land
Parks & preserves
17
13 conserved acres per 1,000 residents
Bike routes
2.8 mi
0.9 mi lanes · 0.0 mi off-road paths
Conserved land is a share of the whole town area. Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Map
Conserved land, trails & bike routes
Tap a number or a place below to zoom in© OpenStreetMap contributors · USGS PAD-US
Places to walk
Parks & preserves with trails
Ranked by mapped trail miles. Directions go to the nearest marked trailhead or public parking.
2
Bald Hill Open Space Preserve
Managed by Marin County Parks
40 acres1.1 mi of trail
Sky Ranch Trail
Dog rules not recorded
No trailhead mapped yet
Website
3
C. Fredrick Faudé Open Space Park
Nature preserve
16 acres0.8 mi of trail
Crawford TrailVoss Trail
Dog rules not recorded
DirectionsTo the parking lot
4
Mount Tamalpais Watershed
Managed by Marin Municipal Water District
5 acres0.3 mi of trail
Buckeye Trail
Dog rules not recorded
No trailhead mapped yet
Website
5
Robson-Harrington Park
Park
3 acres0.3 mi of trail
Dog rules not recorded
No trailhead mapped yet
Website
All 17 parks & preserves
Showing 1–10 of 17 parks & preserves
Sorich Ranch Park Open Space Preserve57 acres · 1.5 mi of trail · Town of San Anselmo
Bald Hill Open Space Preserve40 acres · 1.1 mi of trail · Marin County Parks
C. Fredrick Faudé Open Space Park16 acres · 0.8 mi of trail
Mount Tamalpais Watershed5 acres · 0.3 mi of trail · Marin Municipal Water District
Robson-Harrington Park3 acres · 0.3 mi of trail
Private Open Space Preserve10 acres · 0.2 mi of trail · Private
Upper Hawthorne Canyon Open Space Preserve8 acres · 0.2 mi of trail · Town of San Anselmo
Memorial Ridge Open Space Preserve4 acres · 0.2 mi of trail · Town of San Anselmo
Hawthorne Canyon Open Space Preserve30 acres · 0.1 mi of trail · Town of San Anselmo
San Anselmo Memorial Park4 acres · 0.1 mi of trail
Who protects the land
168 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Biking & sports
Bike routes, courts & fields
- Painted or protected bike lanes0.9 mi
- Off-road bike paths0.0 mi
- Shoulders & shared lanes1.9 mi
Courts & fields
- Tennis8
- Soccer3
- Baseball3
- Softball3
- Basketball2
- Football1
- Lacrosse1
Counts include school and college facilities, which aren't always open to the public.
Nearby
San Anselmo and its neighbors
Towns whose outdoors data has been built so far.
| Town | Conserved | Trails | Parks & preserves |
|---|---|---|---|
| San Anselmo | 9.9% | 6.4 mi | 17 |
| Sleepy Hollow | 27.4% | 24.9 mi | 2 |
| Ross | 6.1% | 2.4 mi | 5 |
| Fairfax | 4.8% | 7.5 mi | 10 |
| San Rafael | 25.9% | 59.2 mi | 28 |
Trail talk
Conditions & tips from neighbors
No recent posts about San Anselmo's trails yet. Muddy, icy, a bridge out, where to park: a quick post helps the next person.
Sources: trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, Protected Areas Database of the United States (PAD-US). Measured against the Census town boundary.
How we measure
"Trails" are OpenStreetMap paths, bridleways, public tracks and unpaved footways, plus footways inside a park or preserve or on a named trail route. Sidewalks are left out. Areas are counted on a 20-meter grid, so overlapping parcels count once. "Conserved" includes conservation easements, which protect land from development but are usually private property. Trailheads are the nearest marked trailhead, public parking lot or information board within about 150 meters of a preserve. Dog rules come from OpenStreetMap when someone has tagged them; otherwise we show what's typical for the land manager, or say the rules aren't recorded.