[Washington, D.C.] : United States Geological Survey,
Map MF-307-; Ceased in 2004?; maps : some col. ; 91 x 115 cm. or smaller on sheets 106 x 120 cm. or smaller folded to 30 x 23 cm. or smaller in envelopes 32 x 26 cm. or smaller.
Published: Menlo Park, Calif., -1976; Reston, Va. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1977-<1990>/ Map MF-307- also issued in envelopes carrying the series title: Basic data contribution./ Some maps accompanied by separate pages of text./ Some maps prepared in cooperation with various federal or state agencies.
Merged with: Geologic investigations series, and: Hydrologic investigations, to form: Scientific investigations map.
Miscellaneous field studies map; Map MF-318, issued out of numerical order, carries earlier title:; Mineral investigations field studies map