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Dig Site Near Burntwood Creek
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Coffey Geoarchaeology Site
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Crawford Sink
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Migrating Snow Geese at Quivira National Wildlife Refuge
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Alcove Spring
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Buried Soils in Terrace Fill
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Collapsed Elmont Limestone Shelf at Pillsbury Crossing
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Spalled Chalk Outcrop Near Castle Rock
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Geoarchaeology Excavation Site
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Red Hills
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Crawford Sink Overpass Removal (Before)
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Rock Wall Restoration at the Tallgrass Prairie National Preserve
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Gun Barrel Hill
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Sunset at Lovewell Reservoir
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Republican River (Aerial)
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Old Center Pivot Irrigation Field in the Sand Hills (Aerial)
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"The Prairie Castle" Lithograph by Birger Sandzen
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Castle Rock
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