3 media by topic ∙ page 1 of 1
Pioneer Historic Byway - Entrance of Niter Ice Cave
The original finding aid described this photograph as: Original Caption: Niter Ice Cave, a lava tube near Grace, Idaho, can be seen in the shadows of the mountains and amidst the tall summer grasses. Location... More
Volcanic Legacy Scenic Byway - Subway Cave
The original finding aid described this photograph as: Original Caption: Subway Cave, a lava tube north of Lassen Volcanic National Park, on Hwy. 89. Lava Beds National Monument encompasses over 46,500 acres a... More
Rogue-Umpqua Scenic Byway - Sign at the Natural Bridge
The original finding aid described this photograph as: Original Caption: An interpretive sign on the hiking trail to the Natural Bridge explains how the hidden river vanishes into the lava tube for 200 feet, f... More