Bui. 81, Forest Service, U. S. Dept. of Agriculture. 



Plate VII. 



Fig. 1.— Typical Mining Operation on Engineer Creek near Fairbanks. Small 

 Black Spruce in the Foreground; Partially Fire-Killed Birch and Aspen on 

 Slope in the Background. 



Fig. 2.— Typical Flume and Sluice Boxes used in Placer Mining for Gold in the 

 Fairbanks District. Much Lumber and Many Poles are Required for these 

 Purposes. 



(Photograph by Johnson.) 



