1 atlas (4 folded leaves of plates) : 7 folded maps (some color) ; 11 x 20 cm
OCLC
ocm26793930
Cartographic Data
Scales vary
Title from maps.
"J. P. Lesley, state geologist."
"Charles A. Ashburner, geologist in charge."
"Geologists: A.W. Sheafer and Bard Wells."
"Supplemented by Maps of special areas constructed by Lewis, A. and S.M. Riley ..."
"Topographical map in ten-foot contour curves of a portion of the western middle coal field between Quakake Junction and Mount Carmel in Schuylkill, Columbia and Northumberland Counties by Stephen and Joseph Harris and A.J. Womelsdorf, 1883."
Accompanies: First report of progress in the anthracite coal region / Charles Albert Ashburner. Harrisburg : Board of Commissioners for the Second Geological Survey of Pennsylvania, 1883.