Indian Tunnel with visitor - Public Domain image, National Parks Galle...
At over 800 feet long and 40 feet tall, Indian Tunnel is the most popular lava tube cave at the monument.
Lava Stalactites - free images of Idaho
Lava stalactites form when lava is still flowing through the tube. As molten portions of the ceiling drip downward some portions cool and harden, forming stalactites.
Thurston Lava Tube Comfort Station
Crater Rim Historic District. A contemporary photo of the Thurston Lava Tube comfort station, built in 1933. This one-story restroom structure is rectangular with corrugated metal cladding, a concrete foundatio... More
Lava Tube Roof Collapse (Skylight)
View through a collapsed roof (skylight) of red-hot lava flowing through a lava tube during 1969–1974 eruption of Mauna Ulu.
A twisted juniper near a lava tube at Big Tubes.
A twisted juniper near a lava tube at Big Tubes.
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
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
Lava Tube - geologic resources division
A vertical entrance into a lava tube photographed from a helicopter.
Lava Stalagmites - geologic resources division
Found in lava, stalagmites coated with gypsum and sulfur in a lava tube.
Tubular Lava Helictites - National Parks Gallery
Tubular lava helictities and drip stalagmites with thin coating of gypsum adorns the side of a passage in a lava tube.
Cave Entrance - geologic resources division
Lava Tube at El Malpais National Monument Public domain photograph of a cave, free to use, no copyright restrictions image - Picryl description
National parks: Stalagmites - public domain image
Found in lava, small drip stalagmites cover the ceiling in a lava tube, Lava Beds National Monument.
Indian Tunnel skylight - National Parks Gallery
Visitors scramble up a rubble pile left by a collapsed portion of the ceiling -- or "skylight" -- in Indian Tunnel.
entrance collapse 2 - National Parks Gallery
visitor near the entrance to a cave Public domain photograph of mountain range, free to use, no copyright restrictions image - Picryl description
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
lava tube 1 - National Parks Gallery
visitor in Indian Tunnel Public domain photograph of quarry workers, mining, miners, free to use, no copyright restrictions image - Picryl description
Lava Tube - geologic resources division
A lava tube exhibits multiple colors in its walls and ceiling at El Malpais National Monument.
Walking Passage - geologic resources division
A large walking passage in a lava tube at El Malpais National Monument.
El Malpais National Monument - Public Domain image, National Parks Gal...
An entrance to a lava tube at El Malpais National Monument.
Ice Formations - geologic resources division
Ice formations in a lava tube in Craters of the Moon National Monument.
Indian Tunnel skylight with visitor
Skylights -- collapses in the cave ceiling -- provide natural lighting in Indian Tunnel.
Indian Tunnel 1 - National Parks Gallery
Visitors peer into Indian Tunnel skylight at Craters of the Moon National Monument.
Indian Tunnel cave, Craters of the Moon National Park & Preserve, 2013...
The majority of caves within the monument are lava tubes. Lava tubes form when the cooling exterior of an active lava flow insulates the active molten river, allowing it to continue to flow. In this way, the co... More
Lava tube, Lava Beds National Monument, 2015.
Lava tubes snake below ground at Lava Beds National Monument. They provide hibernacula for bats and refuge for many other animals living in the high desert.
Looking out of a lava tube at Big Tubes.
Looking out of a lava tube at Big Tubes with a pine forest and cloudy blue sky.
Hiker in lava tube - Public Domain image, National Parks Gallery
The Lava Tube is one of Mojave National Preserve's most popular attractions. It was formed by an erupting cinder cone volcano about 27,000 years ago. The road to access the lava tube is bumpy and not regularly ... More
A collapsed lava tube at Big Tubes.
The Catapillar Collapse, a collapsed lava tube amidst the Ponderosa Pine Forest at Big Tubes on a stormy afternoon.
A lava trench, natural bridge and lava flow at Big Tubes.
A collapsed lava tube, a natural bridge and the Bandera Lava Flow are seen at Big Tubes.
Natural Bridge at Big Tubes. - Public Domain image, National Parks Gal...
A natural Bridge spans a collapsed lava tube at Big Tubes on a cloudy afternoon.
A collapsed lava tube, natural bridge and lava flow at Big Tubes.
A lava trench, natural bridge and the Bandera lava flow on a stormy afternoon at Big Tubes.
Hawaii Volcanoes National Park—Lava Tube
Entrance to much older Pua Poo Lava Tube. Public domain photograph of a cave, free to use, no copyright restrictions image - Picryl description
Lava Tube - geologic resources division
Entrance to Pua Poo Lava Tube. Public domain photograph of a cave, free to use, no copyright restrictions image - Picryl description
Scenic view of Cinder Cone volcanic field
Some cinder cone volcanoes stand behind a mix of desert greenery, including creosote, Mojave yucca, and Joshua tree. The cinder cone volcanoes are visible on Kelbaker road north, about 10 miles south of Baker. ... More