• Speleothems in Miller's Chapel.

    Oregon Caves

    National Monument Oregon

There are park alerts in effect.
hide Alerts »
  • Cave Tours Closed for Season

    Cave Tours are closed for the winter. Tours will resume April 26, 2014. All trails on the monument remain open.

  • Road Work

    Crews are removing brush along highway 46 beginning in the lower parking lot and moving down the highway. Work is scheduled to last until April 20, 2014; expect delays.

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?

This snail was named after an employee of Oregon Cave, not because he was slow but because he wrote the technical description of the snail.

There is a snail that lives on the marble rock outcrops of Oregon Caves that has adapted to use the calcium from the rock to make its shell.