USFS · Oregon

Siuslaw National Forest

The Siuslaw National Forest is a national forest in western Oregon in the United States. Established in 1908, the Siuslaw is made up of a wide variety of ecosystems, ranging from coastal forests to sand dunes.

From Wikipedia, licensed CC BY-SA 4.0.

National Forest835,600 acresUSFSOR48 campgrounds within 10 mi135 Forest Service sites118 trails
Official page at U.S. Forest Service ↗

Facts

Where each comes from ↓
DesignationNational Forest
Managed byU.S. Forest Service
StateOregon
Size835,600 acres (Forest Service administrative boundary (gis_acres))
Forest Service code0612, region 06
Center point44.3775, -123.8805
Night skyAbout as dark as the ground gets (Black Marble reading 9)

Boundary map

9 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 Siuslaw National Forest30°40°50°60°70°January: 14.63 inches of precipitationFebruary: 10.77 inches of precipitationMarch: 10.80 inches of precipitationApril: 7.71 inches of precipitationMay: 4.06 inches of precipitationJune: 2.55 inches of precipitationJuly: 0.52 inches of precipitationAugust: 0.80 inches of precipitationSeptember: 2.68 inches of precipitationOctober: 7.32 inches of precipitationNovember: 13.67 inches of precipitationDecember: 16.39 inches of precipitationJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 40.6°F averageFebruary: 42.4°F averageMarch: 44.8°F averageApril: 48.3°F averageMay: 53.6°F averageJune: 57.7°F averageJuly: 62.0°F averageAugust: 62.6°F averageSeptember: 57.8°F averageOctober: 50.5°F averageNovember: 44.3°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 Alsea Fh (Fall Creek), 7 miles from the center point at 230 feet, station USC00350145 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 92 inches a year.

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 →

36 federal campgrounds sit inside the boundary and 12 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
Alder Dune
Reservable39 sites
FS · Inside
Baker Beach Campground
First-comeOR
FS · Inside
Blackberry
Reservable32 sites
FS · Inside
Bluebill Campground
Reservable19 sites
FS · Inside
Canal Creek
Reservable2 sites
FS · Inside
Cape Perpetua
Reservable40 sites
FS · Inside
Carter Lake
Reservable21 sites
FS · Inside
Castle Rock Group Campground
Reservable1 site
Show 4 more

36 more within ten miles are not listed here.

Trailheads and sites

Forest Service directory · 135

The Forest Service lists 135 recreation sites in this forest, among them 38 day hikings, 22 campgrounds, 14 OHV Campings, 12 boat launchs. 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; 75 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 118 named trails in this forest, 179 miles in all. The 10 longest are listed here.

TrailMiles
Coast Guard - South OHV Trail ↗8.2
Pioneer Indian ↗8
North Fork Smith River Trail ↗6.5
Cummins Ridge ↗6.1
North Ridge-Marys Peak ↗6.1
Cascade Head ↗6
Horse Creek Trail North ↗5.6
Coast Guard North OHV Trail ↗5.5
Hunters OHV Trail ↗5.5
430 OHV Trail ↗4.5

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 118 trails in Siuslaw National Forest on Trailhead Atlas ↗

Explore

Nearby on the other atlases

National Register listings within 15 miles · 197 in all · Register Atlas

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

Reference

Questions people ask

How big is Siuslaw National Forest?

835,600 acres.

Source: Forest Service boundary data

Who manages Siuslaw National Forest?

The U.S. Forest Service.

Source: U.S. Forest Service

What state is Siuslaw National Forest in?

Oregon.

Source: How states are assigned

Can I camp at Siuslaw National Forest?

36 federal campgrounds sit inside the boundary, including Alder Dune, Baker Beach Campground and Blackberry. 48 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 Siuslaw National Forest?

The Forest Service lists 135 recreation sites here, including 38 day hikings, 22 campground campgrounds and 14 ohv campgrounds. Each one links to its Forest Service page.

Source: Trailheads and sites

How do I get to Siuslaw National Forest?

A point inside the boundary is at 44.377, -123.880. The official page carries directions and the office address.

Source: U.S. Forest Service

How dark is the night sky at Siuslaw National Forest?

NASA’s Black Marble night-lights image reads 9 on a 0 to 255 scale at the center point, about as dark as the ground gets.

Source: NASA Black Marble

Are there historic places near Siuslaw National Forest?

197 National Register listings within 15 miles, including Big Creek Bridge No. 01180 and Cape Creek Bridge No. 01113.

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: Siuslaw 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.