Day 2: The Columbia River Gorge, the Fruit Loop, and Mt. Hood
by Steve, Katherine, and Norah
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Day 2: Pie Town, Valley of Fires, Three Rivers Petroglyph Site
by Steve, Katherine, and Norah
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Feathers at Frenchman Coulee
by Jeff B.
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Basalt Columns of Staffa Island
by Ken Zaret
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Nan Madol, Pohnpei the Federated States of Micronesia
by John Amato
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Beaches and Basalt Rocks
by henryzhen
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Volcanoes in Auckland
by Janice Dunn
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Walk 13, Sao Lourenco
by JW
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Royal Gorge Bridge and Basalt, Colorado
by Jerry Pillarelli
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Diyarbakir
by Martyn Unsworth
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