USFS · Washington

Olympic National Forest

Olympic National Forest is a U.S. National Forest located in Washington. With an area of 628,115 acres (254,189 ha), it nearly surrounds Olympic National Park and the Olympic Mountain range. Olympic National Forest contains parts of Clallam, Grays Harbor, Jefferson, and Mason counties. The landscape of the national forest varies, from the temperate Olympic rain forest to the salt water fjord of Hood Canal to the peaks of Mt. Washington.

From Wikipedia, licensed CC BY-SA 4.0.

National Forest697,411 acresUSFSWA34 campgrounds within 10 mi109 Forest Service sites115 trails
Official page at U.S. Forest Service ↗
1fire
active
Mount Tom Creek · 20 mi from the center · 69 acres
Interagency incident data as of 2026-09-18
Incident details ↓

Facts

Where each comes from ↓
DesignationNational Forest
Managed byU.S. Forest Service
StateWashington
Size697,411 acres (Forest Service administrative boundary (gis_acres))
Forest Service code0609, region 06
Center point48.0033, -124.1383
Night skyAbout as dark as the ground gets (Black Marble reading 7)

Boundary map

5 outlines

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 Olympic National Forest30°40°50°60°70°January: 19.10 inches of precipitation, 3.1 inches of snowFebruary: 11.69 inches of precipitation, 1.3 inches of snowMarch: 14.31 inches of precipitation, 0.5 inches of snowApril: 9.43 inches of precipitation, 0.1 inches of snowMay: 4.96 inches of precipitation, 0.0 inches of snowJune: 3.69 inches of precipitation, 0.0 inches of snowJuly: 2.05 inches of precipitation, 0.0 inches of snowAugust: 2.77 inches of precipitation, 0.0 inches of snowSeptember: 4.77 inches of precipitation, 0.0 inches of snowOctober: 11.71 inches of precipitation, 0.0 inches of snowNovember: 18.07 inches of precipitation, 1.0 inches of snowDecember: 17.39 inches of precipitation, 1.9 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 40.7°F averageFebruary: 42.0°F averageMarch: 44.4°F averageApril: 48.3°F averageMay: 53.6°F averageJune: 57.5°F averageJuly: 61.6°F averageAugust: 62.3°F averageSeptember: 58.8°F averageOctober: 51.2°F averageNovember: 44.0°F averageDecember: 39.8°F average0 in5 in10 in15 in20 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Forks 1 E, 10 miles from the center point at 350 feet, station USC00452914 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 120 inches a year. The dotted line is average snowfall, about 8 inches a year on the same inches scale.

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 →

25 federal campgrounds sit inside the boundary and 9 more are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

FS · Inside
Big Creek Campground
First-come64 sites
FS · Inside
Brown Creek Campground
Reservable20 sites
FS · Inside
Brown Creek Campground
First-come20 sites
FS · Inside
Campbell Tree Grove Campground
First-comeWA
FS · Inside
Coho Campground
Reservable58 sites
FS · Inside
Collins Campground
Reservable16 sites
FS · Inside
Collins Campground
First-come16 sites
FS · Inside
Dungeness Forks Campground
Reservable10 sites
Show 4 more

22 more within ten miles are not listed here.

Trailheads and sites

Forest Service directory · 109

The Forest Service lists 109 recreation sites in this forest, among them 76 trailheads, 16 campgrounds, 4 cabins, 3 day hikings. Each links to its page on fs.usda.gov, which carries the season, fees and current status.

Show all 60

The 60 closest to the center point are listed; 49 more are on the Forest Service site.

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

Trails

Every trail on Trailhead Atlas →

The Forest Service trail layer records 115 named trails in this forest, 289 miles in all. The 10 longest are listed here.

TrailMiles
West Fork Humptulips ↗17.1
Wynoochee Lake Shore ↗15.2
MT. Muller ↗11.3
Lower So. Fk. Skokomish ↗10.5
Tubal Cain ↗8.6
Sleepy Hollow ↗8
Dungeness ↗7.7
Tunnel Creek ↗7.5
Dry Creek ↗7.4
Pyramid Peak ↗6.7

Lengths and allowed uses come from the Forest Service trail layer by way of Trailhead Atlas, refreshed September 18, 2026. Trails in plain text have no page there yet.

All 115 trails in Olympic National Forest on Trailhead Atlas ↗

Fire nearby

Within 50 miles · as of 2026-09-18
  • Wildfire
    Mount Tom Creek

    20 mi from the center point · 69 acres

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

Reference

Questions people ask

How big is Olympic National Forest?

697,411 acres.

Source: Forest Service boundary data

Who manages Olympic National Forest?

The U.S. Forest Service.

Source: U.S. Forest Service

What state is Olympic National Forest in?

Washington.

Source: How states are assigned

Can I camp at Olympic National Forest?

25 federal campgrounds sit inside the boundary, including Big Creek Campground, Brown Creek Campground and Brown Creek Campground. 34 in all are within ten miles. Dispersed camping is allowed on most national forest land outside developed sites; check the forest page for closures.

Source: Where to camp

Where are the trailheads in Olympic National Forest?

The Forest Service lists 109 recreation sites here, including 76 trailheads, 16 campground campgrounds and 4 cabin rentalss. Each one links to its Forest Service page.

Source: Trailheads and sites

How do I get to Olympic National Forest?

A point inside the boundary is at 48.003, -124.138. Olympic National Park is 15 miles away. The official page carries directions and the office address.

Source: U.S. Forest Service

Is there a fire near Olympic National Forest right now?

1 active incident within 50 miles as of 2026-09-18, the nearest Mount Tom Creek at 20 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Olympic National Forest?

NASA’s Black Marble night-lights image reads 7 on a 0 to 255 scale at the center point, about as dark as the ground gets.

Source: NASA Black Marble

Which national parks are near Olympic National Forest?

Olympic National Park (15 mi), Ebey's Landing National Historical Reserve (19 mi) and Klondike Gold Rush - Seattle Unit National Historical Park (27 mi). Park Atlas has fees, hours and alerts for each.

Source: Nearby on the other atlases

Are there historic places near Olympic National Forest?

164 National Register listings within 15 miles, including Rose Theatre and Fort Worden Building 305 (Historic Quartermasters Office & Storehouse).

Source: Register Atlas

Sources

  • Boundary, name, acreage and code: the Forest Service Enterprise Data Warehouse.
  • States: computed by intersecting the boundary with Census state polygons; a state is listed when it holds at least one percent of the area.
  • Description: Olympic National Forest on Wikipedia, CC BY-SA 4.0. The article was accepted because its title contains this unit’s name.
  • Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
  • Trailheads and sites: the Forest Service Recreation Opportunities layer, matched by forest code.
  • Trails: the Trailhead Atlas open-data file of Forest Service trails, matched by forest code.
  • 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.