Shows lands of Allis & Merrell in green, and of Case & Longyear in red. Also shows mines and mineral explorations, iron ranges, existing and projected railroads, wagon roads, and supply roads. Relief shown by hachures. "Supplement to the Mining, real estate & manufacturing reporter, Milwaukee, Wis., June 4th, 1887" --Upper margin. "Copyright applied for by Edw. P. Allis, Milwaukee, Wis." 1 map: color; 50 x 62 cm This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.