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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.

Leave it better than you found it.

Hike

Hammerhorn Ridge

Near Hammerhorn Mountain
Inside Mendocino National Forest
3,974 ft of climbing

13.8 mi out & back · 3,974 ft gain · 7,383 ft high point · Easy

From Green Springs Trailhead via Summit (3.1 mi)

In Mendocino National Forest · California · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Hammerhorn Ridge in Yolla Bolly-Middle Eel Wilderness is a 3.7 mi one-way trail near Hammerhorn Mountain, with 1,718 ft climb.

Elevation

3,974 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

0.2 mi from the trailhead
Green Springs Campground
Campground

More hikes nearby

Ranked the same way, within twenty-five miles.

5 mi from you
D-Camp
- Summits Harvey Peak
- Inside Yolla Bolly-Middle Eel Wilderness
- 4,091 ft of climbing
15.9 mi loop · 4,091 ft gain · Easy
Yolla Bolly-Middle Eel Wilderness · Camp 7 mi away
6 mi from you

Out: 1,960 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Hammerhorn MountainNearby · 3.0 mi in

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: 13.8 mi
Shape: Out & back
Gain: 3,974 ft round trip
High point: 7,383 ft
Low point: 6,034 ft
Difficulty: Easy
Managed by: U.S. Forest Service
State: California
Camps within 15 mi: 4
Start: Green Springs Trailhead
Trailhead: 39.9726° N · 122.9336° W

Get directions Open the map

7.2 mi from the trailhead

Howard Meadows Campground

Campground · California

7.9 mi from the trailhead

Sugar Spring Campground

Campground

South Yolla Bolly

Summits South Yolla Bolly
Inside Yolla Bolly-Middle Eel Wilderness
1,654 ft of climbing

7.3 mi loop · 1,653 ft gain · Easy

Yolla Bolly-Middle Eel Wilderness · Camp 7 mi away

Morrison Creek

Summits Little Butte
Inside Yolla Bolly-Middle Eel Wilderness
4,552 ft of climbing

10.7 mi loop · 4,552 ft gain · Easy

Yolla Bolly-Middle Eel Wilderness · Camp 14 mi away

Hotel Camp

Summits Red Rock
Inside Mendocino National Forest
4,614 ft of climbing

14.0 mi out & back · 4,614 ft gain · Easy

Mendocino National Forest · Camp 8 mi away

Solomon Peak Cutoff

Summits Solomon Peak
Inside Mendocino National Forest
3,239 ft of climbing

11.5 mi loop · 3,230 ft gain · Easy

Mendocino National Forest · Camp 5 mi away

Black Rock MTN

Summits Black Rock Mountain
Inside Trinity National Forest
2,540 ft of climbing

8.8 mi out & back · 2,540 ft gain · Very hard

Trinity National Forest · Camp 3 mi away

Signal

Cell coverage here

No carrier reports signal at this spot.

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Today66°49°Mostly Cloudy
Fri57°46°Mostly Sunny
Sat58°46°Mostly Sunny
Sun56°44°Sunny
Mon60°49°Sunny
Tue65°53°Sunny
Wed67°52°Sunny

Today: Mostly Cloudy · wind 9 to 13 mph SW

National Weather Service · refreshed hourly

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Hammerhorn Ridge Cutoff
- Near Hammerhorn Mountain
- Inside Mendocino National Forest
- 1,867 ft of climbing
7.4 mi loop · 1,867 ft gain · Easy
Mendocino National Forest · Camp under a mile away
French Cove
- Summits Solomon Peak
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- 3,176 ft of climbing
11.8 mi loop · 3,176 ft gain · Easy
Mendocino National Forest · Camp 5 mi away
Long Ridge
- Near Windy Mountain
- Inside Yolla Bolly-Middle Eel Wilderness
- 4,459 ft of climbing
14.5 mi out & back · 4,459 ft gain · Easy
Yolla Bolly-Middle Eel Wilderness · Camp 11 mi away
Smokehouse Ridge
- Inside Yolla Bolly-Middle Eel Wilderness
- 2,462 ft of climbing
- Camp 2 mi away
6.8 mi out & back · 2,462 ft gain · Easy
Yolla Bolly-Middle Eel Wilderness · Camp 2 mi away