Abstract
A single petroglyph site in the North-Central Sierra Nevada in the upper watershed of the North Fork of the American River has a unique glyph with meandering and connecting wavy lines that are now proposed as trail maps. A tracing of this glyph was made from a photograph, and this was then placed with the same compass alignment on a topographic map showing all petrographic sites along the North Fork watershed. The ability to superimpose and accurately orient the glyph tracing over a map of these petroglyph sites, and the presence of petroglyphs on seventy-seven individual rock outcroppings mostly within 50 m of the presumed trails, support the trail map interpretation of this rock carving. It is suggested that a hunt shaman may have incised this glyph for ritualistic use.
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