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Petroglyph of Stone Weight used with an Atlatl, Jeffers Petroglyphs – Comfrey, MN
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Snake Petroglyphs, Jeffers Petroglyphs – Comfrey, Minnesota
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Ceremonial Artifacts, Jeffers Petroglyphs – Comfrey, Minnesota
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Petroglyph Symbols, Jeffers Petroglyphs – Comfrey, Minnesota
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Four-Legged Mammal Petroglyph, Jeffers Petroglyphs – Comfrey, Minnesota
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Drum or Shield Symbol, Jeffers Petroglyphs – Comfrey, Minnesota
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Turtle, Jeffers Petroglyphs – Comfrey, Minnesota
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Thunderbird, Jeffers Petroglyphs – Comfrey, Minnesota