of Gla 

 a, whei 



hich 



EXPLANATION OF PLATE IV 



MAP OF HIDDEN GLACIER 



Hidden Glacier reaches the sea at the head of a short arm, branch- 

 ing from Russell Fiord. The whole of the arm is included in the 

 map. For general relations of the locality, see the map of Yakutat 

 Bay, figure 26. For description of the glacier see pages 5258. 



Surveyed by Henry Gannett, June 20, 1899. The chief instrument 

 used was a plane-table, and all stations were on the delta plain between 

 the glacier and the sea. The special purpose of the work was to re- 

 cord the positions, at the time of survey, of the ends of the glacier and 

 delta. 



Office drawing by Gilbert Thompson. 



degrees, 



below 



