158 



Q. S. NATIONAL MUSEUM BULLETIN 217 



OLD CROW 



Figure 7,-Porcupme Valley in the vicinity of Old Crow. (From Canadian Dept. Mines ana )s, Nat. Topogr. Ser., sheets 1 



16 NW and 116 NE, 1945 (aeronaut, ed., 1955), scale 1:506,880.) 



