Washington, D.C. : U.S. Geological Survey,
OM 110-; maps : some col. ; 95 x 133 cm. or smaller on sheets 132 x 162 cm. or smaller, some folded to 26 x 20 cm. or smaller in envelopes 31 x 24 cm.
Published: Reston, VA ; Denver CO : For sale by U.S. Geological Survey, Map Distribution, <1988->/ Some maps accompanied by separate pages of text./ Some sheets include, or consist entirely of, text, sections, tables, bibliographical references, etc./ Some maps prepared in cooperation with various state agencies.
Oil and gas investigations. Preliminary map ; Oil and gas investigations. Map.