U.S.G.S. Geologic Atlas of the United States Folio 167 (Field Edition) United States. Geological Survey Companion text: Geologic atlas of the United States. Trenton Folio / F. Bascom; N. H. Darton; H. B. Kummel; W. B. Clark; B. L. Miller; R. D. Salisbury. Washington, D. C.: U.S. Geologic Survey. 1909. Folios of the geologic atlas of the United States. no. 167(Field edition). 185p. 5pl., 3fig. Relief shown by 20 feet contour interval and spot hights. Topography by Geological Survey of New Jersey and U. S. Geological Survey. Reduced from Princeton, Burlington, Bordentown, and Lambertville sheets. Surveyed in 1885-88. Revised in 1904-05
