Surficial geologic map of parts of Union and Snyder counties, Pennsylvania / Department of the Interior, U.S. Geological Survey ; by Denis E. Marchand and George H. Crowl
Series Titles:
Miscellaneous investigations series ; map I-2051 Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-2051.
Variant Titles:
Parts of Union and Snyder counties, Pennsylvania, surficial geologic map
1 map : color ; on sheet 84 x 112 cm, folded in envelope 30 x 24 cm.
General Note:
Relief shown by contours and spot heights. "Geology mapped by D.E. Marchand, 1975-77. Partly revised by G.H. Crowl, 1982-83." Includes text, bibliography, 4 tables, 1 figure, 1 ancillary map, and quadrangle location and index maps.