• Speleothems in Miller's Chapel.

    Oregon Caves

    National Monument Oregon

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  • Road Work, Expect Delays

    ODOT will be preparing highway 46 for asphalt patching. Please use caution when traveling between the monument and Grayback Campground. Various work will be from continue until July 31, 2014.

  • Watch for Wildlife

    Please be on the lookout for fawns on the section of Caves Highway around Caves Campground! There is at least one very young one that is using the pavement as his transportation corridor.

Nature & Science

The Oregon Caves National Monument lies within the Klamath-Siskiyou Mountains, a region containing among the country's highest diversity of vascular plants (~3,800) and animals (~50,000). The Monument's species per acre count is higher than some tropical areas and includes many specially adapted fungi, lichen and bacteria species.
Biodiversity is the term used to describe the variety of life in a habitat or system. Inside a very small area, the Oregon Caves National Monument has lots of different temperatures, moistures, climates, bedrock, and soils. Habitat diversity means many different kinds can live together and still meet their needs, bringing us biodiversity.

On your visit you will see caves, cliffs, granite, marble, fossils and these are all part of Oregon Caves unique geology. Geodiversity is the variety of geologic elements, landforms and processes that make up our Earth.
Mixed together, geology and biology have created a wonderful place here, where species from past eras can hide and live on and where newer species pushed out of their habitats by human developments or climate change can find a little home that suits them.

Did You Know?

Monterey furniture in one of the lodge rooms. Photo taken in the mid 1930s.

The furniture in the historic Oregon Caves Lodge was custom made by the Mason Manufacturing Company. The furniture has hand painted designs and often used iron strapping, and leather in its construction. The furniture was branded with a small horse shoe design, the icon of the company. More...