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

Hammerhorn Campground

Campground closed due to damage from the 2020 August Complex fires. At Hammerhorn there are nine campsites and three bathrooms including one accessible site and bathroom. There is access to potable water spigots. There is a trailer pull through site. It is not paved. The location is mostly a coniferous/fir forested area with smaller deciduous trees/bushes. The campground sits a short distance above the lake. The accessible trail around the lake is about 40% complete. There is a five-acre lake for trout fishing, however it is not stocked and fishing unavailable due to low water levels.

More like this: first-come in California · tent only in California · accessible sites in California

Amenities & rules

EquipmentTents
Fees$8
AccessibilityAccessible facilities include: restroom, picnic tables and the Hammerhorn Trail (1/4 mi.) which leads along the lake shore from the accessible campground to two fully accessible fishing piers

Individual sites vary. Confirm on Recreation.gov or with the managing office.

Season & status

StatusClosed for the season. Forest Service sites close for the season; check the official page for the reopening date.
ForestMendocino National Forest
Fees$8

Mendocino National Forest recreation page ↗

Weather by month

NOAA climate normals →
Weather by month near Hammerhorn Campground40°50°60°70°80°January: 7.82 inches of precipitation, 0.7 inches of snowFebruary: 6.76 inches of precipitation, 1.4 inches of snowMarch: 5.19 inches of precipitation, 0.2 inches of snowApril: 2.81 inches of precipitation, 0.2 inches of snowMay: 1.64 inches of precipitation, 0.0 inches of snowJune: 0.76 inches of precipitation, 0.0 inches of snowJuly: 0.03 inches of precipitation, 0.0 inches of snowAugust: 0.16 inches of precipitation, 0.0 inches of snowSeptember: 0.20 inches of precipitation, 0.0 inches of snowOctober: 2.00 inches of precipitation, 0.0 inches of snowNovember: 4.28 inches of precipitation, 0.2 inches of snowDecember: 8.79 inches of precipitation, 0.6 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 42.5°F averageFebruary: 45.3°F averageMarch: 49.0°F averageApril: 52.7°F averageMay: 59.2°F averageJune: 65.5°F averageJuly: 72.5°F averageAugust: 71.1°F averageSeptember: 66.4°F averageOctober: 57.2°F averageNovember: 46.8°F averageDecember: 41.2°F average0 in2 in4 in6 in8 in10 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Covelo, 16 miles from the campground at 1,413 feet, station USC00042081 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 40 inches a year. The dotted line is average snowfall, about 3 inches a year on the same inches scale.

Getting there

Coordinates39.9488° N, 122.9914° W · Directions ↗

Fire nearby

  • Prescribed
    Alder Springs Underburn Rx

    25 mi from the campground

  • Prescribed
    Harrison Gulch Broadcast Rx

    29 mi from the campground

  • Prescribed
    Mrrd Programatic Pile Rx

    30 mi from the campground

  • Prescribed
    Hayfork Watershed Rx

    44 mi from the campground

Distance is to the reported incident point, not the fire edge. Call the managing office before you drive.

Supplies & services

RV sales & serviceRV sales & service ↗50.8 mi

Locations © OpenStreetMap contributors. Call ahead; hours change seasonally.

Explore

Worth a stop

  • under 0.1 mi
    Hammerhorn Lake
    0.4 mi trail
  • 0.4 mi
    Amandas Answer
    under 0.1 mi trail
  • 1 mi
    Key Spot
    0.1 mi trail
  • 1 mi
    End of the Day
    under 0.1 mi trail
  • 1.2 mi
    Ants Place
    0.3 mi trail
  • 1.3 mi
    Rough N Ready
    under 0.1 mi trail

Trailheads within three miles

Trail and trailhead records are the Forest Service's. Distances are straight-line to the nearer trail end. Trail conditions are not tracked here.

Public land it sits in

On Wilderness Atlas →

This campground sits inside Yolla Bolly-Middle Eel Wilderness.

Each unit is published as a centre point and an acreage rather than a boundary, so this section stands it in for a circle of the same area. Whether a campground is inside, and how far it is from one it is outside, are both approximate.

Guidebooks for California

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Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

How much does it cost to camp at Hammerhorn Campground?

$8

Source: Forest Service

Is Hammerhorn Campground open right now?

Closed for the season as of Oct 26, 2026.

Source: Forest Service status

Can I bring an RV to Hammerhorn Campground?

Hammerhorn Campground is listed for tents only.

Source: Forest Service

Are there accessible sites at Hammerhorn Campground?

Accessible facilities include: restroom, picnic tables and the Hammerhorn Trail (1/4 mi.) which leads along the lake shore from the accessible campground to two fully accessible fishing piers.

Source: Forest Service

What if Hammerhorn Campground is full?

The nearest public campgrounds are Green Springs Campground (3.7 mi, first-come), Little Doe Campground (3.7 mi, first-come), and Howard Lake Campground (4.9 mi, first-come).

Source: Campgrounds nearby