1 map : col. ; 82 x 117 cm. fold. in envelope 30 x 24 cm.; Reprint 1987; An overprint of the 2,500,000-scale base map. Shows counties, 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 35 by 48 inches.