volcanic (29 photos)

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mudpot - bubbling hot mud pool, boiling, bubbling, geothermal, lassen volcanic national park, mud pool, mudpot

mudpot, bubbling hot mud pool

mudpot - lassen volcanic national park, boiling, bubbling, geothermal, lassen volcanic national park, mud pool, mudpot

mudpot, lassen volcanic national park

bubbling mudpot - mud pool - lassen volcanic national park, boiling, bubbling, geothermal, lassen volcanic national park, mud pool, mudpot

bubbling mudpot, mud pool, lassen volcanic national park

mudpot - hot mud pool - lassen volcanic national park, boiling, bubbling, geothermal, lassen volcanic national park, mud pool, mudpot

mudpot, hot mud pool, lassen volcanic national park

bumpass hell - lassen volcanic national park, bumpass hell, geothermal, hot springs, lassen volcanic national park, mountain, pool

bumpass hell, lassen volcanic national park

hot springs - bumpass hell - lassen volcanic national park, bumpass hell, fumaroles, geothermal, hot springs, lassen volcanic national park, mountain, pool

hot springs, bumpass hell, lassen volcanic national park

bumpass hell hot springs - lassen volcanic national park, bumpass hell, geothermal, hot springs, lassen volcanic national park, mountain, pool, streams

bumpass hell hot springs, lassen volcanic national park

bubbling hot springs - lassen volcanic national park, bumpass hell, geothermal, hot springs, lassen volcanic national park, pool

bubbling hot springs, lassen volcanic national park

mudpots and hot springs - bumpass hell - lassen volcanic national park, bumpass hell, fumaroles, geothermal, hot springs, lassen volcanic national park, mountain, mudpots, pool

mudpots and hot springs, bumpass hell, lassen volcanic national park

boiling mudpot - lassen volcanic national park, boiling, bubbling, bumpass hell, geothermal, hot springs, lassen volcanic national park, mud, mudpot

boiling mudpot, lassen volcanic national park

ancient lava ripples, basalt, lava beds, lava ripples, rock formation, shasta-trinity national forest, volcanic

ancient lava ripples

cracked lava flow, basalt, lava beds, rock formation, shasta-trinity national forest, volcanic

cracked lava flow

tree grows over collapsed lava cave, basalt, cave mouth, caving, lava beds, lava cave, lava tube cave, natural cave, rock formation, shasta-trinity national forest, spelunking, tree, volcanic

tree grows over collapsed lava cave

ancient lava flow - shasta-trinity national forest, basalt, lava beds, rock formation, shasta-trinity national forest, volcanic

ancient lava flow, shasta-trinity national forest

jot dean ice cave, caving, jot dean ice cave, lava cave, lava tube cave, natural cave, rock, shasta-trinity national forest, spelunking, volcanic

jot dean ice cave

jot dean ice cave, caving, jot dean ice cave, lava cave, lava tube cave, natural cave, rock, shasta-trinity national forest, spelunking, volcanic

jot dean ice cave

capped geothermal well, capped geothermal well, exploration, green energy, pipe, power, shasta-trinity national forest, volcanic

capped geothermal well

capped geothermal exploratory well, capped geothermal well, exploration, green energy, pipe, power, shasta-trinity national forest, volcanic

capped geothermal exploratory well

lava tube cave, basalt, caving, galleries, lava beds national monument, lava tube cave, lave cave, natural cave, spelunking, tunnels, volcanic

lavacicles - lava stalactites, basalt, caving, lava beds national monument, lava tube cave, lave cave, natural cave, rock formation, speleothem, spelunking, stalactites, volcanic

lavacicles, lava stalactites

lava tube cave, basalt, caving, lava beds national monument, lava tube cave, lave cave, natural cave, spelunking, tunnel, volcanic

lava ripples in old lava flow, basalt, lava beds national monument, lava flow, lava ripples, rock formation, volcanic

lava ripples in old lava flow

lava beds national monument (california), basalt, lava beds national monument, rugged, volcanic

lava beds national monument, california

glacial striations on basalt columns - devils postpile (california), california, columnar basalt, columns, devils postpile, eastern sierra, erosion, forest, geology, glacial polish, glacial striations, lava flow, rock formation, trees, volcanic

glacial striations on basalt columns, devils postpile, california

devils postpile - cliff of columnar basalt (california), california, cliff, columnar basalt, columns, devils postpile, eastern sierra, geology, lava flow, rock formation, trees, volcanic

devils postpile, cliff of columnar basalt, california

devils postpile basalt columns (california), california, cliff, columnar basalt, columns, devils postpile, eastern sierra, geology, lava flow, rock formation, volcanic

devils postpile basalt columns, california

giant peace symbol on mountain, basalt, death valley, peace symbol, saline valley, stone graffiti, volcanic

giant peace symbol on mountain

giant peace symbol stone graffiti, basalt, death valley, igneous rocks, men, peace symbol, saline valley, stone graffiti, trail, volcanic rocks, volcano

giant peace symbol stone graffiti

capped geothermal well, capped geothermal well, exploration, green energy, pipe, power, shasta-trinity national forest, volcanic

capped geothermal well