1 map : col. 39 x 122 cm. fold. in envelope 30 x 24 cm.; Reprint 1990; An overprint of the 1:240,000-scale base map. Shows location and names of all cities and towns and most of the smaller settlements and railroads in black; water features in blue; hydrologic boundaries and codes in red. No contours. Sheet 42 by 58 inches. 1952 base.