Russian Ridge Open Space Preserve
Near Portola Valley, San Mateo County, CA
- Size
- 1,218 acres Source
About Russian Ridge Open Space Preserve
Russian Ridge Open Space Preserve covers more than 3,100 acres of grassy ridgeline along Skyline Boulevard and is known as one of the Bay Area's best spots for spring wildflowers and for raptors. Poppies and lupine bloom first, followed in May and June by gumweed, mule's ears, farewell-to-spring, and brodiaea; during wildflower season the whole preserve is closed to off-trail travel. Red-tailed hawks, Cooper's and sharp-shinned hawks, and golden eagles hunt over the grasslands. The ridge changes with the seasons: golden hills in summer evening light, the clearest views of the bay in fall, and an occasional dusting of snow in winter storms.
The Bay Area Ridge Trail runs the length of the preserve past Borel Hill, the highest named point in San Mateo County, with a 360-degree view; a short, steep spur climbs to another vista point. The Ancient Oaks Trail passes under arching oak limbs, and the trail from the Mindego Gateway now continues to the top of Mindego Hill through grazed land.
The ridge is named for Mr. Paskey, a Russian immigrant who ran a dairy here from about 1920 to 1950 on land leased from San Francisco mayor James "Sunny Jim" Rolph Jr. Dogs are not allowed; bikes and horses are allowed on designated trails. Spring weekend parking fills fast: the main lot (37 spaces) is at Skyline Boulevard and Page Mill/Alpine Road, and the Mindego lot (20 spaces, with a restroom) is on Alpine Road.
Based on Russian Ridge Open Space Preserve official information, checked Oct 15, 2026.
Know before you go
Russian Ridge Open Space Preserve covers 1,218 acres near Portola Valley in San Mateo County. Closing follows the sun here: sunset at Russian Ridge Open Space Preserve is around 4:52 p.m. in mid-December, 7:15 p.m. in mid-March, 8:30 p.m. in mid-June, and 7:18 p.m. in mid-September. 11 named trails add up to about 12.2 miles inside the park; the longest is Ridge Trail at 2.6 miles, and Ridge Trail has the most up and down (about 740 feet). Mapped trails range from 1,641 to 2,560 feet in elevation. OpenStreetMap shows 3 parking areas, including Russian Ridge Open Space Parking, plus 2 restrooms.
Facilities
- Restrooms
Facility details: official park information
Russian Ridge Open Space Preserve at a glance
- PParking · 3: Russian Ridge Open Space Parking
- WCRestrooms · 2
- Named trails · 11
© OpenStreetMap · CPAD · About this map
Trails
| Trail | Mapped length | Elevation | Surface & uses |
|---|---|---|---|
| Ridge Trail | 2.6 mi | 740 ft up & down2,257–2,560 ft | UnpavedBikesHorsesNo dogs |
| Mindego Hill Trail | 2.1 mi | 740 ft up & down1,754–2,149 ft | UnpavedBikesHorsesNo bikesNo dogs |
| Charquin Trail | 1.9 mi | 675 ft up & down1,837–2,356 ft | UnpavedBikesHorses |
| Badger's Byway Trail | 1 mi | 227 ft up & down1,966–2,399 ft | BikesHorses |
| Alder Spring Trail | 1 mi | 325 ft up & down1,996–2,212 ft | BikesHorses |
| New Ancient Oaks Trail | 0.9 mi | 248 ft up & down2,203–2,419 ft | UnpavedBikesHorses |
| Ancient Oaks Trail | 0.7 mi | 351 ft up & down2,165–2,498 ft | UnpavedBikesHorses |
| Fog Drift Vista Trail | 0.7 mi | 318 ft up & down1,943–2,255 ft | BikesHorsesUnpaved |
| Hawk Ridge Trail | 0.6 mi | 308 ft up & down2,059–2,383 ft | BikesHorses |
| Council Circle Trail | 0.4 mi | 120 ft up & down1,641–1,782 ft | UnpavedNo bikesHorsesNo dogs |
| Bo Gimbal Trail | 0.3 mi | 80 ft up & down2,443–2,530 ft | UnpavedBikesHorses |
Compared with nearby parks
Among the 23 other parks in this guide within 10 miles, Russian Ridge Open Space Preserve is number 8 of 24 by size at 1,218 acres. 8 nearby parks have more mapped trail mileage than its 12.2 miles.
Closest places for what Russian Ridge Open Space Preserve doesn't list:
- Playground: Huddart Park (8.9 mi)
- Camping: Monte Bello Open Space Preserve (3.6 mi)
- Fishing: Stevens Creek County Park (7.7 mi)
Rules & reservations
Official park pageOpen a half-hour before sunrise until a half-hour after sunset. The Mindego Hill area closes when the National Weather Service declares Red Flag Warning weather.
Map & directions
Nearby parks
Straight-line distanceContinue exploring
San Mateo County parksSources & verification
Last verified: Oct 15, 2026- California Protected Areas Database (CPAD) 2026aname, county, agency, access, acres
- Midpen preserve pageofficial_url, hours, hours_note, dogs, facilities.restrooms
- Midpen visitor FAQ (no entry or parking fees)fees
- OpenStreetMap facilities and trailstrails
- U.S. Census Bureau place boundaries (nearest place)city
- OpenStreetMap: parking, restrooms, water, trailheads, trail lines, and bus stopsvisit
- Terrain Tiles elevation (USGS 3DEP), sampled every 20 m along OpenStreetMap trail linestrails.elevation
- Official park page (summarized in our words)narrative
- Official park page (introduction excerpt)intro