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Great Bear Mound Group
Effigy Mounds National Monument
Allamakee County
Iowa
© Larry Ulrich
Image ID: 515IW006X1
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Great Bear Mound Group
Effigy Mounds National Monument
Allamakee County
Iowa
© Larry Ulrich
Image ID: 515IW007X1
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Great Bear Mound Group
Effigy Mounds National Monument
Allamakee County
Iowa
© Larry Ulrich
Image ID: 515IW008X1
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Emerald Mounds
Natchez Trace Parkway
just north of Natchez
Mississippi
© Larry Ulrich
Image ID: 524QC007X1
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Petroglyphs at Petroglyph Lake
Hart Mountain National Antelope Refuge
High Desert
Oregon
© John Dittli
Image ID: 537MS010J1
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Petroglyph at Petroglyph Lake
Hart Mountain National Antelope Refuge
High Desert
Oregon
© John Dittli
Image ID: 537MS011J1
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