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DonCrain: Lava Butte Cinder Cone - Newberry Volcano Nat'l Monument
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DonCrain: Channeled aa flow and lava vent area - Lava Butte - Newberry Volcano Nat'l Monument
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DonCrain: Lava vent at base of Lava Butte Cinder Cone - Newberry Volcano Nat'l Monument
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DonCrain: Lava Butte Cinder Cone - Newberry Volcano Nat'l Monument
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DonCrain: Steep flank of Lava Butte Cinder Cone - Newberry Volcano Nat'l Monument
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DonCrain: Small lava tube - Lava Butte - Newberry Volcano Nat'l Monument
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DonCrain: Lava Levees - Lava Butte Cinder Cone - Newberry Volcano Nat'l Monument
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DonCrain: Lava Levees and Lava Flow Field - Newberry Volcano Nat'l Monument
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DonCrain: Lava Butte lava flow field looking southwest - Newberry Volcano Nat'l Monument
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DonCrain: View of Cascade volcanoes SW from Lava Butte- Newberry Volcano Nat'l Monument
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DonCrain: View of Cascade volcanoes SW from Lava Butte - Newberry Volcano Nat'l Monument
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DonCrain: View of Cascade volcanoes SW from Lava Butte - Newberry Volcano Nat'l Monument
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DonCrain: Mt Bachelor viewed from Lava Butte - Newberry Volcano Nat'l Monument
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DonCrain: South Sister and Broken Top viewed from Lava Butte - Newberry Volcano Nat'l Monument
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DonCrain: Three Sisters and Broken Top from Lava Butte - Newberry Volcano Nat'l Monument
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DonCrain: North caldera wall - East Lake - Newberry Caldera - Newberry Volcano Nat'l Monument
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DonCrain: Paulina Peak viewed from Big Obsidian Flow - Newberry Volcano Nat'l Monument
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DonCrain: Big Obsidian Flow looms behind the trees - Newberry Volcano Nat'l Monument
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DonCrain: Margin of Big Obsidian Flow - Newberry Caldera - Newberry Volcano Nat'l Monument
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DonCrain: Big Obsidian Flow - Newberry Caldera - Newberry Volcano Nat'l Monument
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DonCrain: Margin of Big Obsidian Flow - Newberry Caldera - Newberry Volcano Nat'l Monument
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DonCrain: Lost Lake at foot of Big Obsidian Flow - Newberry Caldera - Newberry Volcano Nat'l Monument
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DonCrain: Rhyolite Lava - Big Obsidian Flow - Newberry Volcano Nat'l Monument
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DonCrain: Non-Glassy rhyolite lava - Big Obsidian Flow - Newberry Volcano Nat'l Monument
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DonCrain: Non-Glassy rhyolite lava at Big Obsidian Flow with Paulina Lake - Newberry Volcano Nat'l Monument
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DonCrain: Glassy and non-glassy rhyolite lava at Big Obsidian Flow - Newberry Volcano Nat'l Monument
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DonCrain: Obsidian - Big Obsidian Flow - Newberry Volcano Nat'l Monument
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DonCrain: Obsidian - Big Obsidian Flow - Newberry Volcano Nat'l Monument
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DonCrain: Obsidian - Big Obsidian Flow - Newberry Volcano Nat'l Monument
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DonCrain: Distant Newberry shield volcano and satellite vents - Newberry Volcano Nat'l Monument