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Figure 12: Outcropping in the Simpson Mountains on which petroglyphs may be found | 1939 | Image/StillImage |
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Figure 13: Petroglyph in the Simpson Mountains | 1939 | Image/StillImage |
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Figure 14: Recess in Tunnel Canyon, Nevada, in which Pictographs occur | 1939 | Image/StillImage |
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Figure 15: Pictographs in Tunnel Canyon | 1939 | Image/StillImage |
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