Douglas, E.M. <br/><br/>
South Dakota Sturgis Quadrangle Surveyed in 1897 

, Scale  [1:62500] 
 - Washington  US Geological Survey  1899 
 - 1 Map  Coloured  56 x 46 cm 
<br/><br/> Datum is mean sea level 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Topographic Map
<br/><br/><label>Dewey Class. No.: </label>912.783