Dry Room Oregon Caves

Oregon Caves National Monument is one of the few marble caves in the world (only about 5% of all caves are marble caves) having been created when acidic rainwater dissolved the surrounding marble. In fact, Oregon Caves has long been known as the “Marble Halls of Oregon.” As you walk through the caves, you can see the marble in the cave walls and this is especially evident when you reach the Dry Room

Marble Hall in Dry Room Oregon Caves

The next stop on the Oregon Caves tour is at the Niagara Falls.

Petrified Gardens Oregon Caves

It doesn’t take long into the Oregon Cave National Monument Cave tour to get to some beautiful and interesting cave formations. After leaving Watson’s Grotto, you almost immediately reach Petrified Gardens where there are a lot of flow stones along the walls:

Flow stones at Petrified Gardens in Oregon Caves

Flow stone closeup at Petrified Gardens in Oregon Caves

And soda straws on the cave ceiling:

soda straws at Petrified Gardens in Oregon Caves

The next stop on the Oregon Caves tour is at the Dry Room.