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Middle Beaver Creek Excavation Site #6
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Excavation Site Near Kanorado in Sherman County
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Chalk Bluffs South of Castle Rock
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Chalk Outcrops Near Castle Rock
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Chalk Outcrops Near Castle Rock
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Cobra Rock (1970)
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Little Pyramids
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Mission Creek at Echo Cliff
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Mud Swallow Nests
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Red Hills
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Kiowa Formation Shale
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Point of Rocks
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Inscribed Plow Disk and Ogallala Outcrop
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Fossilized Wood in Outcrop
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Highway Bridge Over Dry Arkansas River
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Excavation of 11,000-Year-Old Campsite
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Blown-out Mine Shaft
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Blown-Out Mine Shaft
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