"This index is designed to inform map users of the various map series, special maps, and map byproducts produced and distributed by the U.S. Geological Survey"--Back panel. "39086-MI-99X"-- Panel. "1-SS-38...5-92"--Back panel. Includes index map (71 x 48 cm) for the primary map series the 1:24,000 quadrangles, and in addition index maps for the County map series (1:100,000), 30 x 60 minute series (1:100,000), 1 x 2 degree series (1:250,000), sectional map series (1:2,000,000), and state map series (1:500,000 and 1:1,000,000). Information contained in these index maps is valid indefinitely. Refer to the companion Catalog of topographic and other published maps which lists names, dates, and prices of maps currently available, and is updated and reissued periodically. Imprint: Reston, Va. : The Survey; Imprint: Denver, Colo. : Map Distribution, [1992] Dimensions: 130 x 81 cm; Scale: 1:24,000
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