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A large spring emerges from the undergrowth in the Cascades.
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A high altitude glacier in the Oregon Cascades.
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An outlet glacier emanating from the largest glacier in Iceland, Vatnajokull.
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Icebergs float in Askja Caldera, Iceland.
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A view of Sawtooth Mountain in the Oregon Cascades.
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Iceland’s eastern fjords cut into the lower crust.
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Old lava flows blanket the floor of Askja Caldera, Iceland. The caldera rim is visible on the right-hand side of the photo.
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Ice needles, known as false fungus, supplied by premelted water flowing through the pore spaces of decaying wood (photo by Nick Page).
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Funnels formed on a snow-covered slope are caused by water percolating through the snow (photo by Howard Conway).
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The Wallowa Mountains of northeastern Oregon before twilight.
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A herd of Elk graze in the Oregon coast range.
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Cape Blanco Light House. The Blanco fracture zone is just offshore.
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Sunset in the northeast Pacific, Juan de Fuca Ridge.
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Frigate bird, Isla Genovesa, Galapagos
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Catching dinner during Galapagos seismic experiment.
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Punta Vincente Roca, near Vulcan Ecuador, Isla Isabella, Galapagos.
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Marine iguanas, Punta Vincente Roca, Galapagos.
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Masked Booby, Vulcan Ecuador, Galapagos.
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Land Iguana, Isla Fernandina, Galapagos.
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Life is good! Swimming after another perfect day in the Galapagos.
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Galapagos Hawk, the top predator.
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Our contribution to the goat eradication project on Isla Isabella.
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California sea lions, Isla Espanola, Galapagos.
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Underway to the next site, panga in tow.
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Mt. St. Helens from the air.
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Mount Washinton, Oregon Cascades and the Collier Flow. From near the Pacific Crest Trail.
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A relaxing vew from the King Estate Winery, southwest of Eugene.
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Sunny day at the southern Oregon coast, near Cape Blanco.