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Oregon Map Geologic History (Joe) View |
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The Geologic Oddity in Oregon; Haystack Rock, a 200+ Foot Tall Monolith (GeologyHub) View |
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The Story of Oregon's Mysterious 25 Mile Wide Circle (GeologyHub) View |
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Unearthing Oregon History—The Buck Rock Tunnel (Oregon Historical Society) View |
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Volcanic evolution of the Pacific Northwest: 55 million year history (IRIS Earthquake Science) View |
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The Scars of History: Mapping Oregon's Cascade Mountains (Outdoor History) View |
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The Active Volcano in Oregon; Mount Bachelor (GeologyHub) View |
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The Story of Oregon's Mysterious || 25 Mile Wide Circle (Effects of gravity) View |
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Physiogeographic Provinces of Oregon mapping project (Mary Baxter) View |
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Geologic Framework of Oregon and the Pacific Northwest | Kevin Pogue (International Terroir Congress) View |