Lehman, Ambrose E. (Ambrose Edwin), 1851-1917Title from maps.; "Under the superintendence until 1877 of Dr. Persifor Frazer."; "J. P. Lesley, state geologist."; Assistant topographers: George M. Lehman and James L. Maull.; "Sheets A1., A2; B1 and B2., have been published in Octavo Atlas D5."; Relief shown by contours.23 centimetersJPEGUMN_ALMA:9975252999301701engGeological Survey of Pennsylvania (Harrisburg, Pa)PublicTopographical map (in 10 foot contour lines) of the South Mountains in Adams, Franklin, Cumberland and York CountiesMaps1875-1885University of Minnesota