Paper version: In stock and available from the USGS Store
Additional Publication Details
USGS Numbered Series
Hydrologic Unit Map -- 1988, Ohio
1 map : col. ; 85 x 94 cm. fold. in envelope 30 x 24 cm.; Reprint 1988; An overprint of the 1:500,000-scale state 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; county codes in green. No contours. Sheet 40 by 37 inches. 1951 base.