Cascade-Siskiyou National Monument

The CSNM includes almost 25,000 acres designated as the Soda Mountain Wilderness.

Recent News

The Cascade-Siskiyou National Monument, located in southwestern Oregon, protects approximately 66,000 acres of forest and grasslands at the junction of the Cascade Range and the Siskiyou Mountains.  The CSNM includes almost 25,000 acres designated as the Soda Mountain Wilderness.

Recent News – Jan. 12, 2017

 President Obama proclaims expansion of the Cascade-Siskiyou National Monument On Jan. 12, President Obama exercised his authority under the Antiquities Act to expand the Cascade-Siskiyou National Monument by almost 48,000 acres of public land. This expansion, based on the recommendations of scientists including Conservation Co- Chair Pepper Trail, incorporates Grizzly Peak, areas north and west of Hyatt Lake and east of Howard Prairie, and the BLM land managed as part of California’s Horseshoe Ranch Wildlife Area north of Irongate Reservoir.

Further information, and a link to a map of the expanded Monument can be found here.

Please contact the Medford offices of Senator Merkley at 541-608-9102 and Senator Wyden at 541-858-5122 to thank them for their support, which was critical to this successful effort, long a conservation priority of the Rogue Valley Audubon Society.


The Cascade-Siskiyou National Monument (CSNM) was established by proclamation of President Bill Clinton on June 9, 2000, in recognition of its remarkable ecology and to protect a diverse range of biological, geological, aquatic, archeological, and historic objects.

The CSNM is the first monument set aside solely for the preservation of biodiversity. Due to several complex biological and geological factors and processes operating simultaneously, the monument contains an unusually high variety of species in a geographically small area.

In August, 2008, the Bureau of Land Management released its Record of Decision and Resource Management Plan, a result of a multi-year collaborative planning process. The management plan was designed to meet the primary goal of protecting, maintaining, restoring or enhancing the long-term ecological integrity of the CSNM.

Land use decisions made in this plan include:  land tenure zoning classifications; designations of vegetation management areas’ visual resource management classifications; programmatic and site-specific decisions related to livestock grazing; decisions regarding transportation and access (except those mandated by the presidential proclamation); wildland fire management; recreation management; and management of rights-of-way and communication sites.

Map To download a pdf copy of this CSNM map (16.82 MB), click here

The 2008 Record of Decision and Resource Management Plan for the Cascade-Siskiyou National Monument can be found here.

Here’s a checklist of bird species seen in the CSNM