Title supplied by cataloger. Photograph caption dated April 3, 1974 reads, "Not just ordinary boulders, these, according to Dr. Sylvia Broadbent, UC Riverside anthropology professor, who said there is no question that the slightly concave rock in upper half of photo was worn that way by ancient Indians grinding grain and marks on surface of rock in lower photo were also made by the same Indians."
Type
image
Format
1 photographic print :b&w ;21 x 26 cm. Photographic prints
United States.--Bureau of Land Management.--California Desert District.--Northern and Eastern Mojave Planning Area Petroglyphs--California, Southern Mohave Indians--Antiquities Native Americans--Antiquities Deserts--California, Southern Canyons--California, Southern Mojave Desert Los Angeles Herald-Examiner photographs Herald-Examiner Collection photographs
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