Oregon Caves National Monument & Preserve

Deep within the Siskiyou Mountains are dark, twisting passages that await your discovery. Eons of acidic water seeping into marble rock created and decorated the wondrous “Marble Halls of Oregon.” Join a tour, get a taste of what caving is all about, and explore a mountain from the inside and out!

Milller's Chapel

Miller's Chapel at Oregon Caves National Monument and Preserve

Miller's Chapel at Oregon Caves

Mountain Meadows at Bigelow Lakes

Mountain Meadows at Bigelow Lakes at Oregon Caves National Preserve

Mountain Meadows at Bigelow Lakes

Banana Grove formations

Speliothems in the Banana Grove room, Oregon Caves.

Cave speliothems

Speleothems

Paradise Lost

Flowstone and drapery in a dome pit