Index to intermediate-scale mapping : 1:100,000-scale quadrangle mapping.

Bibliographic Details
Corporate Authors:	Geological Survey (U.S.), United States. Bureau of Land Management, Geological Survey (U.S.). National Mapping Division
Format:	Government Document Map Serial
Language:	English
Published:	Reston, Va. : The Survey
Subjects:	United States > Maps > Indexes. Index maps.

Description
Item Description:	On verso: county format maps (1:50,000 and 1:100,000-scale). Works in progress and published maps. Insets: Alaska, Hawaii, Manua Islands/American Samoa, Guam, Puerto Rico and Virgin Islands. Cartographic material.
Physical Description:	2 maps on 1 sheet : both sides, color ; 77 x 120 cm.
Publication Frequency:	Semiannual