Washington, DC: United States Geological Survey / USGS / Government Printing Office / GPO, 1954. Map. Fine. Item #52064
Folded color map sheet measuring 27h X 22w inches. Topography by plane-table surveys 1925, 1933-1934, and 1939. Culture revised from aerial photographs taken 1952. Field check 1954. Single fold. Shows the towns of Ontario, Chino, Pomona, Claremont and Upland. A fine copy with no tears or separations along the folds.