A lava cave is any cave formed in volcanic rock, though it typically means caves formed by volcanic processes, which are more properly termed volcanic...

a lava flow. If lava in the tube empties, it will leave a cave. A lava tube is a type of lava cave formed when a low-viscosity lava flow develops a continuous...

121°22′08″W / 43.895396°N 121.368917°W / 43.895396; -121.368917 The Lava River Cave near Bend, Oregon, is part of the Newberry National Volcanic Monument...

Lava River Cave is a lava tube in northern Arizona's Coconino National Forest. At approximately 0.75-mile (1.21 km) long, it is the longest cave of its...

Wiri lava cave is Auckland's longest known lava cave at around 290 metres. It is part of Matukutūruru (Wiri Mountain) volcano, in the Auckland volcanic...

remarkably long and deep lava tube; it is 65.6 km long (40.8 mi). Lava caves include but are not limited to lava tubes. Other caves formed through volcanic...

flow. If lava in the tube empties, it will leave a cave. Unnamed cave along the Kakomeru climbing route of Mt. Nyamulagira 70 m lava tube cave has been...

they may be of a different color than the original lava that formed the cave. When the roof of a lava tube is cooling, a skin forms that traps semi-molten...

An ice cave is any type of natural cave (most commonly lava tubes or limestone caves) that contains significant amounts of perennial (year-round) ice...

complete purge of the main lava flow. Essentially, it is still the gravity deposition of material onto the floor of a cave (or a void). However the difference...