Rancho San Antonio Open Space Preserve
Managed by Midpeninsula Regional Open Space District
106 acres1.6 mi of trail
Black Mountain TrailChamise TrailRhus Ridge TrailRavensbury Trail
No dogs
Directionsto the parking lotWebsite ↗
Willard Griffin House and Carriage House · Photo: Sanfranman59 · CC BY-SA 3.0B+Outdoors
Outdoors in Los Altos Hills
Los Altos Hills has 28 miles of mapped trails, 3.1 for every square mile of land
The biggest trail networks: Rancho San Antonio Open Space Preserve (1.6 mi). 120 acres are parks and preserves, 14 per 1,000 residents. 66% of residents live within a half mile of a park.
Ahead of 73% of U.S. towns · #329 of 847 in California. What drives it
Conserved land
4%
206 acres · of 9.1 sq mi of land
Trails
28 mi
3.1 per sq mi of land
Park land
120 ac
14 acres per 1,000 residents
Near a park
66%
of residents within ½ mile
Bike routes
5.5 mi
2.3 mi lanes · 0.8 mi paths
What kind of outdoors town is Los Altos Hills?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Los Altos Hills have?
On conserved land, trails, park land and how close residents live to a park, Los Altos Hills is ahead of 73% of U.S. towns, #329 of 847 in California. All four inputs are above most U.S. towns; trail miles rank highest, conserved land lowest.
B+
OutdoorsA character grade: shown, never part of Los Altos Hills’ overall grade.
Conserved land4% of the land · typical CA town 4% · U.S. 4%B−Trails3.1 miles of mapped trail per square mile of land (28 mi) · CA 0.9 · U.S. 0.4A+Park land14 acres of park per 1,000 residents (120 acres) · CA 5 · U.S. 13BParks close to home66% of residents within a half mile of a park · CA 91% · U.S. 72%B−
All U.S. towns we grade (21,298)Ahead of 73%
LessMore
California towns of 2,500+ (847)Ahead of 61%
How sure. Graded on any three of the four inputs instead, the letter would range from B− to A−. Trails and many small parks come from OpenStreetMap, mapped by volunteers, so coverage varies from town to town; the half mile is a straight line from each census block, so a river or highway in the way isn’t counted against it.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is Rancho San Antonio Open Space Preserve, with 1.6 miles. Directions go to the nearest trailhead or public parking.
Juan Prado Mesa Preserve
Nature preserve
14 acres0.3 mi of trail
Dawson Path
Dog rules not recorded
No trailhead mapped yet
Bicentennial Park
Park
2 acres0.1 mi of trail
Dog rules not recorded
No trailhead mapped yet
Who protects it
206 conserved acres
4% of Los Altos Hills’ land. Who manages Los Altos Hills’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Regional agency106 ac
Town or city100 ac
Local Conservation Area · 205 ac
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Rancho San Antonio Open Space Preserve Local Conservation Area | Regional agency | 106 | Open |
| Byrne Reserve Local Conservation Area | Town or city | 100 | Closed |
Things to do
10 places to go in Los Altos Hills
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Public pools in Los Altos Hills
1 public pool without a name on the map. Tap “Show all on map” to see it.
Playgrounds in Los Altos Hills
7 playgrounds without a name on the map. Tap “Show all on map” to see them.
Scenic views in Los Altos Hills
1 scenic view without a name on the map.
Picnic areas in Los Altos Hills
1 picnic area without a name on the map.
Trails & water
25 named trails
Named trails
Open to bikes · 10.3 miHorses · 8.8 miUnpaved · 17.3 mi
Artemas-Ginzton Pathway0.8 mi
Packard Trail0.7 mi
Chamise Trail0.6 mi
Central Drive (Dirt Moody)0.5 mi
Wallace Stegner Pathway0.5 mi
Natoma Oaks Pathway0.5 mi
Dawson Path0.5 mi
Matadero Trail0.5 mi
Dori Path0.5 mi
Rhus Ridge Trail0.4 mi
15 more trails
Broken House Path
0.4 miPage Mill to Saddle Court path
0.4 miBlack Mountain Trail
0.4 miPage Mill Trail
0.4 miBob Stutz Path
0.3 miLower Fran Stevenson Path
0.2 miFran Stevenson Path
0.2 miSlalom Path
0.2 miconnecting path between Baleri Ranch and Saddle Court
0.2 miDeer Creek Trail
0.2 miSolar Path
0.2 miByrd Path
0.2 miMary Stutz Path
0.2 miWest Path
0.2 miBuena Vista Path
0.2 miBiking & sports
5.5 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
2.3 mi
painted or protected bike lanes
0.8 mi
off-road bike paths
2.5 mi
shoulders & shared lanes
Courts & fields
103Tennis
22Basketball
6Baseball
5Equestrian
2Football
2Soccer
1Softball
1Pickleball
Includes school and college facilities, which aren’t always open to the public.
History along the way
History →2 places on the National Register
The country’s official list of places worth saving (National Park Service). The map also marks 1 historic points from OpenStreetMap: plaques, memorials and old buildings.
When to get out
The best walking months in Los Altos Hills: April to August
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.9 | 10.8 | 11.9 | 13.1 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| High (°F) | 59 | 61 | 64 | 67 | 72 | 78 | 81 | 82 | 81 | 75 | 65 | 58 |
| Rain (in) | 5.7 | 5.6 | 4.4 | 2.1 | 0.9 | 0.2 | 0.0 | 0.0 | 0.1 | 1.2 | 2.9 | 5.8 |
July is the driest month (under 0.1 in) and August the warmest (highs of 82 °F). 5.8 inches fall in December, the wettest month. The climate in Los Altos Hills →
Next door
Los Altos Hills and its neighbors
Los Altos Hills has the second most mapped trails of the 4 towns around it. Tap a town to see its outdoors.
Questions about parks and trails in Los Altos Hills
Where can I hike in Los Altos Hills?
The longest trail networks: Rancho San Antonio Open Space Preserve, 1.6 miles; Juan Prado Mesa Preserve, 0.3 miles; Purissima Park, 0.2 miles; Bicentennial Park, 0.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Los Altos Hills is conserved land?
4% of its land, against a typical 4% for a California town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Los Altos Hills’ trails?
Rancho San Antonio Open Space Preserve and Juan Prado Mesa Preserve don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Los Altos Hills?
5.5 miles of bike routes are on the map: 2.3 of painted or protected lanes, 0.8 of off-road paths and 2.5 of shoulders and shared lanes.
Is there public land near Los Altos Hills?
53,265 acres of parks and open public land lie inside Los Altos Hills or within 10 miles of it (PAD-US), 120 of them inside the town line.
How much outdoors does Los Altos Hills have?
Ahead of 73% of U.S. towns on the Outdoors grade, #329 of 847 in California. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from Los Altos Hills neighbors.
Share a tip
Sources
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →