The Oregon Caves National Monument & Preserve offers visitors a deeper look into the earth; providing an experience that you would not typically get at a National Park. Here, you can have an immersive experience during a guided tour into the depths of the Oregon Caves within the Siskiyou Mountains. The Oregon Caves is a solution cave, meaning it is formed as underground water and naturally occurring acid passes through pores and cracks of the bedrock. The acidic water causes dripping formations to occur which make the walls appear to be decorated.
The “Marble Halls of Oregon" found within this cave system are what make this particular dwelling so fascinating. There are only a select few marble caves that exist in the world. The marble in the caves is formed by heat and pressure being applied to limestone, making this rare occurrence a truly spectacular site.
Source: U.S. Department of the Interior, National Park Service
