Oregon Caves National Monument and Preserve

Oregon Caves National Monument and Preserve offers an extraordinary journey into subterranean wonders and ancient forests.

Deep within Oregon's rugged Siskiyou Mountains lies a hidden world where ancient marble caves beckon explorers. Oregon Caves National Monument and Preserve protects one of North America's few marble cave systems, a geological marvel carved over millions of years by acidic rainwater. Above ground, a pristine landscape of old-growth forests, diverse wildlife, and scenic mountain vistas surrounds this unique underground realm, creating a captivating experience for all who visit.

The monument's main attraction is its extensive marble cave system, often called the "Marble Halls of Oregon." Guided tours lead visitors through twisting passages, revealing breathtaking formations like stalactites, stalagmites, helictites, and flowstones, including notable areas such as the "Ghost Room" and "Paradise Lost." The River Styx, the nation's only underground Wild and Scenic River, flows through the cave, adding to its mystique. Above ground, visitors can hike through towering old-growth forests, discovering species like the "Big Tree," Oregon's widest Douglas fir, and exploring trails that wind past waterfalls and offer panoramic mountain views.

Visiting Oregon Caves National Monument and Preserve is an immersive experience that blends geological wonder with natural beauty and rich history. From the cool, intricate chambers of the marble cave, home to unique cave crickets and bats, to the majestic ancient forests populated by Douglas fir and Port Orford cedar, the venue offers a rare opportunity to connect with an interconnected ecosystem both above and below the surface. The historic Oregon Caves Chateau, a National Historic Landmark, also provides a glimpse into the past and enhances the memorable nature of a trip here. Enhance your adventure: download the Snappit app to identify the local species you encounter.