The Only Book Published on Ohio Petroglyphs !For each of fifty–six locations, Dr. Swauger provides maps, photographs and line drawings, a summary of historical accounts, and discussion of the figures involved, their possible significance, and methods of creation. Based on comparative studies and interpretation of site records, Swauger suggests that the majority of Native American petroglyphs in Ohio were created between A.D. 1200 and 1750. Such evidence also enables Swauger to isolate numerous later rock carvings, some of which masquerade as Native American, and advance theories as to their origin.A Quality Re-Print with Digitally Improved Pictures. 7"x 10", 340 Pages ,shrink wrapped