Item is an image of a section of a rock with petroglyphs highlighted with chalk. According to annotations, petroglyphs were pecked on granite and pictograms were chalked, and image was taken by E. F. Meade. Original slide incl
Item is an image of a rock with petroglyphs, surrounded by smaller rocks and stones, probably in a beach area. According to annotations, image is of a beach boulder pecked on granite and was taken by E. F. Meade.
Item is an image of a rock with petroglyphs, surrounded by smaller rocks and stones, probably in a beach area. According to annotations, image is of beach boulder and was taken by E. F. Meade. Original slide included number 20.