UNITED STATES GEOLOGICAL SURVEY GEORGE OTIS SMITH, Director
DEPARTMENT OF THE INTERIOR FRANKLIN K. LANE, Secretary UNITED STATES GEOLOGICAL SURVEY GEORGE OTIS SMITH, Director Bulletin 635 R. B. MARSHALL, CHIEF GEOGRAPHEE WASHINGTON GOVERNMENT PRINTING OFFICE 1916 CONTENTS. Page. Introduction.............................................................. 5 Previous publication.................................................. 5 Personnel............................................................. 5 Classification.......................................................... 5 Bench marks......................................................... 6 Datum............................................................... 6 Topographic maps.................................................... 7 Precise leveling............................................................ 7 Atlanta, Baxley, Brunswick, Cochran, Dalton, Eastman, Everett, For- syth, Gresston, Jackson, Jesup, Lumber City, McDonough, McRae, Macon, Marietta, Ringgold, Rome, Scotland, Surrency, and Tobesofkee quadrangles (Appling, Bibb, Butts, Clayton, Cobb, Coffee, Dodge, Floyd, Fulton, Glynn, Gordon, Henry, Monroe, Pauldiug, Polk, Pulaski, Telfair, Twiggs, Wayne, and Whitfield counties)...................... 7 Ringgold quadrangle (Dade County)................................... 14 Macon and Meriwether quadrangles (Baldwin, Bibb, and Jones counties) . 15 Primary leveling........................................................... 16 Dahlonega, Dalton, and Ellijay quadrangles (Fannin, Gilmer, Habersham, Lumpkin, Murray, Rabun, Towns, Union, White, and
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