Keyword: national volcanic monument

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Obsidian Flow

Obsidian Flow

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23 17 224
Obsidian Boulder

Obsidian Boulder

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13 5 138
Obsidian

Obsidian

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12 4 148
Obsidian and Snow

Obsidian and Snow

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12 4 134
Lava Lands

Lava Lands

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28 19 192
Lava Lands

Lava Lands

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10 4 130
Lava Lands

Lava Lands

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10 3 135
Sulfur Buckwheat

Sulfur Buckwheat

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9 4 123
Lava Butte Fire Lookout

Lava Butte Fire Lookout

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28 16 221
Dead Tree

Dead Tree

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20 10 151
Rydberg's Penstemon

Rydberg's Penstemon

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17 5 133
Mount St. Helens

Mount St. Helens

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8 4 604
Mount St. Helens Eruption Area and West End of Spirit Lake

Mount St. Helens Eruption Area and West End of Spi…

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1 452