BLM · Oregon, California

Cascade–Siskiyou National Monument

The Cascade–Siskiyou National Monument is a United States national monument that protects 114,000 acres (46,134 ha) of forest and grasslands at the junction of the Cascade Range and the Siskiyou Mountains in Southwestern Oregon and Northwestern California, United States. The monument is managed by the Bureau of Land Management as part of the National Landscape Conservation System. It was established in a presidential proclamation by President Bill Clinton on June 9, 2000 and expanded by President Barack Obama on January 12, 2017.

From Wikipedia, licensed CC BY-SA 4.0.

Official page at Bureau of Land Management ↗
DesignationNational Monument
Managed byBureau of Land Management
StatesOregon, California
Size170,401 acres
National Conservation Lands idNLCS000732
Center point42.13° N, 122.46° W
Night skyAbout as dark as the ground gets (Black Marble reading 11)

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 Cascade–Siskiyou National Monument20°30°40°50°60°70°January: 4.67 inches of precipitation, 25.4 inches of snowFebruary: 3.76 inches of precipitation, 23.5 inches of snowMarch: 3.67 inches of precipitation, 16.0 inches of snowApril: 2.66 inches of precipitation, 9.2 inches of snowMay: 2.04 inches of precipitation, 1.2 inches of snowJune: 1.03 inches of precipitation, 0.1 inches of snowJuly: 0.49 inches of precipitation, 0.0 inches of snowAugust: 0.39 inches of precipitation, 0.0 inches of snowSeptember: 0.68 inches of precipitation, 0.1 inches of snowOctober: 2.00 inches of precipitation, 1.0 inches of snowNovember: 3.97 inches of precipitation, 14.8 inches of snowDecember: 5.92 inches of precipitation, 26.3 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 29.5°F averageFebruary: 31.6°F averageMarch: 35.2°F averageApril: 40.0°F averageMay: 47.9°F averageJune: 54.3°F averageJuly: 62.9°F averageAugust: 62.3°F averageSeptember: 56.1°F averageOctober: 45.5°F averageNovember: 35.0°F averageDecember: 28.8°F average0 in10 in20 in30 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Howard Prairie Dam, 8 miles from the center point at 4,567 feet, station USC00354060 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 31 inches a year. The dotted line is average snowfall, about 118 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 →

1 federal campground sits inside the boundary and 11 more are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Show 4 more

Fire nearby

Within 50 miles · as of 2026-11-01
  • Wildfire
    W Fork Evans Creek

    46 mi from the center point · 283 acres · 75% contained

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 · 114 in all · Register Atlas

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

Guidebooks for Oregon

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

  • Pacific Crest Trail: Oregon and Washington
    Andy Selters, 2019
    Find at Bookshop.org
  • Oregon's Ancient Forests
    Chandra LeGue, 2019
    Find at Bookshop.org
  • Backpacking Oregon
    Douglas Lorain, 2018
    Find at Bookshop.org
  • Best dog hikes Oregon
    FalconGuides (Publisher), 2017
    Find at Bookshop.org
  • Best hikes near Portland, Oregon
    Fred Barstad, 2016
    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 Cascade–Siskiyou National Monument?

170,401 acres.

Source: How acreage is computed

Who manages Cascade–Siskiyou National Monument?

The Bureau of Land Management.

Source: Bureau of Land Management

What state is Cascade–Siskiyou National Monument in?

The boundary crosses Oregon and California.

Source: How states are assigned

Can I camp at Cascade–Siskiyou National Monument?

Rules vary by unit. The BLM page has the current camping rules. The federal campgrounds within ten miles are listed under Where to camp.

Source: Where to camp

How do I get to Cascade–Siskiyou National Monument?

A point inside the boundary is at 42.134° N, 122.458° W. The official page carries directions and the office address.

Source: Bureau of Land Management

Is there a fire near Cascade–Siskiyou National Monument right now?

1 active incident within 50 miles as of 2026-11-01, the nearest W Fork Evans Creek at 46 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

Are there historic places near Cascade–Siskiyou National Monument?

The National Register has 114 listings within 15 miles, including Buckhorn Mineral Springs Resort and Parsons, Reginald, Dead Indian Lodge.

Source: Register Atlas

Sources

  • Boundary, name: the BLM National Conservation Lands layer.
  • States and territories: computed by intersecting the boundary with Census state polygons and coarse outlines of the territories and outlying islands. A place is listed when it holds at least one percent of the area. A boundary that touches no outline is listed under the nearest one.
  • Acreage: geodesic area of the published polygon. The agency’s official acreage can differ where the boundary includes water, easements or inholdings.
  • Description: Cascade–Siskiyou National Monument 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.
  • 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.