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Cattle Herd Below Chalk Bluffs
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Monument Rocks
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Ash Quarry
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Moss Opal in Cretaceous Limestone
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Champion Draw into Medicine Lodge River
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Cretaceous Fossil Beds
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Sandstone Concretions at Rock City
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Bison Bones at Excavation Site
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Little Pyramids
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Seismic Explorations at Monument Rocks
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Excavation at Bison Jump
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Chalk Beds Near Castle Rock
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Ogallala Formation Outcrop at Clark State Fishing Lake
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Oread Limestone
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Slope Collapse in Blue Hill Shale
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Highway 59 Road Construction
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Limestone Quarry
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Sioux Quartzite Glacial Debris on Hilltop
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