USFS · Washington

The Brothers Wilderness

The Brothers Wilderness is located on the eastern flanks of the Olympic National Forest just South of Buckhorn Wilderness and north of Mt. Skokomish Wilderness. At 6,866 feet, The Brothers is the highest peak in the area, with a distinct double summit that ranks among the most popular climbs in the Olympics. Between moss- and fern-laden banks, the Dosewallips and Hamma Hamma Rivers run cold and clear north and south, respectively, of the borders of The Brothers Wilderness. Through the center of the Wilderness the Duckabush River splashes down a wide and lovely glacier-carved valley shadowed by tall hemlock, fir, and cedar.

Description from Wilderness Connect (wilderness.net).

Official page at Wilderness Connect ↗
The Brothers Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byU.S. Forest Service
StateWashington
Size16,297 acres
Designated1984, by Congress
Center point47.69° N, 123.10° W
Night skyAbout as dark as the ground gets (Black Marble reading 8)

Boundary map

1 outline

Boundary, simplified to about 0.005 degrees Federal campground

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 The Brothers Wilderness30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecJanuary: 38.9°F averageFebruary: 40.6°F averageMarch: 44.6°F averageApril: 49.1°F averageMay: 55.1°F averageJune: 59.2°F averageJuly: 64.4°F averageAugust: 64.1°F averageSeptember: 59.5°F averageOctober: 50.7°F averageNovember: 42.5°F averageDecember: 37.9°F averageTemp °F
The line is the average temperature at Quilcene 2 SW, 12 miles from the center point at 123 feet, station USC00456846 in the NOAA monthly climate normals for 1991 to 2020.

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 7 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.

3 named Forest Service trails enter this wilderness, 15 miles in all.

TrailMiles
Mt. Juipter ↗6
Duckabush ↗5.9
The Brothers2.6

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.

Explore

Nearby on the other atlases

National Park System units within 30 miles · Park Atlas
National Register listings within 15 miles · 8 in all · Register Atlas

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

Guidebooks for Washington

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

  • Backpacking Washington
    Douglas Lorain, 2020
    Find at Bookshop.org
  • Pacific Crest Trail: Oregon and Washington
    Andy Selters, 2019
    Find at Bookshop.org
  • Hiking Waterfalls in Washington
    Sawyer Scheer, 2019
    Find at Bookshop.org
  • Hiking Washington's Fire Lookouts
    Amber Casali, 2018
    Find at Bookshop.org
  • Hikes in the Washington Region Part C
    Larry Broadwell and William Needham, 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 The Brothers Wilderness?

16,297 acres.

Source: Wilderness Connect

Who manages The Brothers Wilderness?

The U.S. Forest Service.

Source: Wilderness Connect

What state is The Brothers Wilderness in?

Washington.

Source: Wilderness Connect

When was The Brothers Wilderness designated?

Congress designated it in 1984.

Source: Wilderness Connect

Can I camp at The Brothers 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 The Brothers Wilderness?

A point inside the boundary is at 47.687° N, 123.097° W. Olympic National Park is 26 miles away. The official page carries directions and the office address.

Source: Wilderness Connect

Which national parks are near The Brothers Wilderness?

Olympic National Park (26 mi). Park Atlas has fees, hours and alerts for each.

Source: Nearby on the other atlases

Are there historic places near The Brothers Wilderness?

The National Register has 8 listings within 15 miles, including Interrorem Guard Station--Olympic National Forest and Duckabush River Bridge.

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.