BLM · USFS · California

Yolla Bolly-Middle Eel Wilderness

Located between the North and South Yolla Bolly Mountains in the as-rugged-as-it-comes headwater country of the Wild and Scenic Middle Fork of the Eel River, Yolla Bolly-Middle Eel Wilderness ranges in elevation from about 2,000 feet to 8,000 feet. The river crashes wildly through the Wilderness in a deep canyon for approximately six miles, and, combined with sections of the 48 miles of river outside the Wilderness, forms what is arguably California's finest long white-water run. Chamise and manzanita in the lower elevations give way to dense arrays of pine and fir cloaking numerous ridges. Vast grasslands open many of the steep hillsides. Summer wildflowers dramatically color large mountain meadows.

Description from Wilderness Connect (wilderness.net).

Official page at Wilderness Connect ↗
Yolla Bolly-Middle Eel Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byBureau of Land Management and U.S. Forest Service
StateCalifornia
Size182,298 acres
Designated1964, by Congress
Center point40.05° N, 123.03° W
Night skyAbout as dark as the ground gets (Black Marble reading 13)

Boundary map

1 outline

Boundary, simplified to about 0.005 degrees Federal campground Forest Service recreation site

The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.

Weather by month

NOAA climate normals →
Weather by month near Yolla Bolly-Middle Eel Wilderness40°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, 20 miles from the center point 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. The station sits about 4,600 feet lower than the center point, so temperatures on the ground run cooler.

Large units span more than one climate. The station stands in for the center point, and the outer parts of the boundary can be warmer or colder.

Where to camp

Campsite Atlas →

None of the 6 federal campgrounds within ten miles sit inside the boundary. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Trailheads and sites

Forest Service directory · 1

The Forest Service lists 1 recreation site inside this wilderness, among them 1 trailhead. Each links to its page on fs.usda.gov, which carries the season, fees and current status.

Distance is from the center point of the boundary, not from a road or town.

66 named Forest Service trails enter this wilderness, 298 miles in all. The 10 longest are listed here.

TrailMiles
Summit ↗17
Humboldt ↗14.5
Willow Creek ↗13
Chicago Camp ↗12.8
River ↗11.3
South Fork Cottonwood Creek ↗11.2
Ides Cove Loop ↗10.7
Cottonwood ↗10.6
Hell Hole Canyon ↗10.4
Buck Ridge ↗9.3

Lengths and allowed uses come from the Forest Service trail layer by way of Trailhead Atlas. This trail list was copied from Trailhead Atlas on November 1, 2026 and is copied again on each weekly run. Trails in plain text have no page there yet.

Fire nearby

Within 50 miles · as of 2026-11-01
  • Prescribed
    Alder Springs Underburn Rx

    32 mi from the center point

  • Prescribed
    Lower Gas Point Vmp Rx

    36 mi from the center point · 254 acres

  • Prescribed
    Hayfork Watershed Rx

    36 mi from the center point

  • Prescribed
    Five-6 Understory Rx

    49 mi from the center point

Distance is to the reported incident point, not the fire edge, and is measured from the center of a boundary that may be many miles across. Check the agency page for closures.

Explore

Nearby on the other atlases

National Register listings within 15 miles · 1 in all · Register Atlas

Landmarks are listed first, then by distance from the boundary.

Guidebooks for California

We earn a small commission if you buy through these links. It does not change what we list.

  • Walkabout Northern California
    Tom Courtney, 2019
    Find at Bookshop.org
  • Backpacking California
    Wilderness Press, 2019
    Find at Bookshop.org
  • Coastal trails of Southern California
    Linda B. Mullally, 2018
    Find at Bookshop.org
  • Hiking northern California
    Bubba Suess, 2017
    Find at Bookshop.org
  • Hiking the Pacific Crest Trail: Southern California
    Shawnte Salabert, 2017
    Find at Bookshop.org

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

Reference

Questions people ask

How big is Yolla Bolly-Middle Eel Wilderness?

182,298 acres.

Source: Wilderness Connect

Who manages Yolla Bolly-Middle Eel Wilderness?

Bureau of Land Management and U.S. Forest Service share management. The Bureau of Land Management portion is the largest in the wilderness record.

Source: Wilderness Connect

What state is Yolla Bolly-Middle Eel Wilderness in?

California.

Source: Wilderness Connect

When was Yolla Bolly-Middle Eel Wilderness designated?

Congress designated it in 1964.

Source: Wilderness Connect

Can I camp at Yolla Bolly-Middle Eel Wilderness?

Camping inside a wilderness is usually allowed away from roads, with no facilities, and the managing agency page has the permit rules. The federal campgrounds within ten miles are listed under Where to camp.

Source: Where to camp

How do I get to Yolla Bolly-Middle Eel Wilderness?

A point inside the boundary is at 40.053° N, 123.027° W. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Yolla Bolly-Middle Eel Wilderness right now?

4 active incidents within 50 miles as of 2026-11-01, the nearest Alder Springs Underburn Rx at 32 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

Are there historic places near Yolla Bolly-Middle Eel Wilderness?

The National Register has 1 listing within 15 miles, including Round Valley Flour Mills.

Source: Register Atlas

Sources

  • Boundary, name, acreage, designation year, states and description: Wilderness Connect.
  • Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
  • Trailheads and sites: the Forest Service Recreation Opportunities layer, points inside the boundary.
  • Trails: the Trailhead Atlas open-data file of Forest Service trails, matched on the wilderness each trail enters.
  • Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
  • Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.