Map of the Lehigh Coal & Navigation Co.'s coal property near Mauch Chunk, Pa
- Rothwell, Richard P. (Richard Pennefather), 1836-1901
- P.S. Duval, Son & Co
Relief shown by contours. Oriented with north towards the upper right. Insets: Four sections of coal measures--Scale 1:4800 (400 feet one inch). Surveyed and reported upon by R.P. Rothwell, mining engineer and metallurgist, Wilkes-Barre, Pennsylvania.
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