Image Missing: Hearst Museum object titled Black-and-white negative, accession number 15-12166, described as Black and white negative. Site J 89 = 131, Madera County. Massey is standing on rook containing bedrock mortars now submerged in San Joaquin River (not in flood) View is to south. July 18, 1939. 2 3/8 square inches. 15-12166. Collector: Gordon W. Hewes. Donor: U.C. Central San Joaquin Valley Survey. Original number: 133.