4 SMITHSONIAN MISCELLANEOl'S COLLECTIONS VOL. 63 



On this trip to Robson Peak, Dr. Walcott approached from the 

 west side, in order to study the local geological section which he con- 

 siders one of the finest in the world. From the west foot of Robson 

 I'eak. \Miitehorn Peak rises on the north to a height of 7.850 feet 

 above Lake Kinney (frontispiece), and on the east the clitts of 

 Robson rise tier above tier from the surface of the lake to the summit 

 of the peak, a vertical distance of 9,800 feet. The base of this geo- 



Fir,. 4.— Phillips Mountain, from Robson Pass, looking over the front of 

 Hunga Glacier. Robson Park, British Columbia, Canada. Photograph by 

 C. D. Walcott, igr.^. 



logical section is .shown on the right of the fronti.spiece, and the 

 ui)i)er half by figure i, while figure 2 illustrates a profile of 7.500 feet 

 of the section. 



l-'rom beneath the l)ase of tlie mottntain at Lake Kinney, the strata 

 skji)e ^entlv u])\vard so that more than 4,000 feet in thickness of 

 ])eds, which pass under Robson Peak, are exposed in ledges to the 

 north and south. .\ consi<leral)le ])ortion of this thickness is shown 

 in tbe dark ])eak to the left of W'hitehorn Peak in the frontis])iece. 



