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© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

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Hike

Grassland Trail

Passes Sunol Peak
4,343 ft of climbing

13.5 mi out & back · 4,343 ft gain · 2,101 ft high point · Very hard

Via the Sunol Ridge Trail (4.2 mi)

California · OpenStreetMap contributors

About Elevation Highlights Map More hikes

About this hike

Grassland Trail is a 13.5-mile out and back route via Sunol Ridge Trail climbing 4,343 feet with Sunol Peak along the way.

Elevation

4,343 ft of gain round trip.

More hikes nearby

Ranked the same way, within twenty-five miles.

17 mi from you
Las Trampas Ridge Trail
- Passes Vail Peak
- 3,006 ft of climbing
12.7 mi out & back · 3,006 ft gain · Very hard
California
8 mi from you

Out: 2,250 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Sunol PeakAlong the way · 2.9 mi in

Nearby reading

Holy Cross Orthodox Monastery (Castro Valley, California)
1956 Niles Canyon Douglas R5D-2 crash

Map

The hike from its start, the approach dashed. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Download the trail and feature data.

At a glance

Length: 13.5 mi
Shape: Out & back
Gain: 4,343 ft round trip
High point: 2,101 ft
Low point: 241 ft
Difficulty: Very hardFrom 13.5 mi and 4,343 ft of climbing
Managed by: OpenStreetMap contributors
State: California
Camps within 15 mi: 0
Trailhead: 37.5944° N · 121.8959° W

Get directions Open the map

Ohlone Wilderness Trail

Ends at Lake Del Valle
7,707 ft of climbing

26.4 mi one way · 7,707 ft gain · Very hard

California

Bay Area Ridge Trail - 04 - San Francisco and Peninsula

Passes Tank Hill
3,229 ft of climbing

22.3 mi one way · 2,195 ft gain · Very hard

California · Camp 12 mi away

Rocky Ridge Loop Trail

Summits Rock 2
1,309 ft of climbing

4.3 mi loop · 1,303 ft gain · Moderate

California

Sunol Ridge Trail

Passes Sunol Peak
2,573 ft of climbing

8.5 mi out & back · 2,573 ft gain · Hard

California

Woodside Spring Trail

Summits Sunol Peak
2,503 ft of climbing

6.4 mi out & back · 2,503 ft gain · Hard

California

Weather

7-day forecast

Sat70°51°Sunny
Sun69°52°Partly Sunny
Mon69°53°Mostly Sunny
Tue70°52°Sunny
Wed73°54°Sunny
Thu67°53°Mostly Sunny
Fri63°Chance Light Rain

Sat: Sunny · wind 2 to 7 mph WNW

National Weather Service · refreshed hourly

Signal

Cell coverage here

VerizonLTE · Excellent
AT&T5G · Fair
T-MobileLTE · Good

FCC coverage data · signal varies in remote terrain

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Sunol Ridge Trail
- Passes Sunol Peak
- 2,573 ft of climbing
8.5 mi out & back · 2,573 ft gain · Hard
California
Woodside Spring Trail
- Summits Sunol Peak
- 2,503 ft of climbing
6.4 mi out & back · 2,503 ft gain · Hard
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Robertson Ranch Trail
- Passes Sunol Peak
- 3,131 ft of climbing
10.1 mi out & back · 3,131 ft gain · Very hard
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Bay Valley View Trail
- Near Sunol Peak
- 3,942 ft of climbing
11.2 mi out & back · 3,942 ft gain · Very hard
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