Includes explanation of "Public lands" and "Land districts."; Vicinity of Galena, the lead region; Washington.;Relief shown by hachures.;Vicinity of Alton & St. Louis.;1 map, colored;Engraved by S. Stiles & Co.;Hand colored map of Illinois;Includes explanation of "Public lands" and "Land districts"; Vicinity of Galena, the lead region -- Vicinity of Alton & St. Louis;Relief shown by hachures;counties, townships, sections, post offices, villages, roads, canals, projected railroads, rivers, prairies, swamps;96 x 62 cm.;1:633,600 or 10 miles to 1 inch