GLACIERS ON THE PACIFIC COAST. 



31 



taken place in them. The narrowing upper portion of the 

 bay which is now bordered by the gravel deposits of the gla- 

 cial streams pouring out from the southeastern portion of 

 the Malaspina Glacier is called Disenchantment Bay. But 

 above Haenke Island the depression turns at right angles 

 sharply to the south and extends twenty-five miles between 

 mountain ranges forming Russell Fiord. Into this fiord 



Fig. 20 — Map showing hypothetical former extension of glaciers during ice-flood stage, 

 based on observations of the height reached by the glaciers at a number of points. 

 (From U. S. Geological Survey.) 



numerous local glaciers descend from both sides. The evi- 

 dence is clear that at a comparatively recent time, probably 

 as late as the visit of Vancouver near the close of the 18th 



