Douglas, E. M. <br/><br/>
California (Glenn Country) Walker creek quadrangle surveyed in 1904 in copperation with the state of California 

, Scale  [1:31680] Scale   [1:5]  Contour Interval 5 feet 
 - Washington  US geogological survey   1914 
 - 1 Map  Coloured Map  52 x 42cm 
<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>912.794