728 ROLLIN D. SALISBURY 



of the earlier ice epoch with the earlier wide extension of the 

 Bonneville waters cannot as yet be asserted, although the data 

 at hand strongly suggest the contemporaneity of the early 

 expanded stage of Lake Bonneville and the early glaciation. 



THE MOUNTAINS NEAR SANTA FE 



Messrs. John E. Webb and William A. Averill spent 

 about one month in the mountains of New Mexico, a few miles 

 northeast of Santa Fe. The area studied was the Santa Fe 

 range of the Rockies, which traverses the northeastern portion 

 of New Mexico, running in a general north-northeast, south- 

 southwest direction through the adjacent parts of Santa Fe, Rio 

 Arraba, Mora, and San Miguel counties, between the parallels of 

 35° 45' and 36°, and the meridians of 105° 35' and 105° 50'. 

 The aggregate area comprises about 250 square miles. 



The height of the range in the area studied varies from 7000 

 feet to 13,306, feet, the latter being the altitude of the highest 

 of the Truchas peaks. The altitude which seems to have been 

 necessary for the generation of glaciers was 11,700 to 12,000 

 feet. The following peaks attained the requisite height: Lake 

 peak, 12,380 feet; Baldy peak, 12,623 ^^^t ; Pecos Baldy (Cone 

 peak?), 12,550 feet; Jicarilla peak, 12,944 feet; and the 

 Truchas group, the highest peak of which is 13,306 feet. Clear 

 evidence of glaciation was not seen on lower peaks, though it 

 cannot be said that many of the lower peaks were studied in the 

 detail necessary to demonstrate the complete absence of glacia- 

 tion. 



Heading against these peaks and their connecting ridges, 

 fifty cirques bearing evidences of glaciation were observed. 

 Neve fields, with incipient motion, existed at some points where 

 well-formed glaciers did not develop. Sixteen of the cirques 

 are in the group of mountains (Lake, Baldy, and associated 

 ridges) at the head of Santa Fe Creek ; seven in the Pecos Baldy 

 group ; twelve among the Truchas peaks ; and fifteen about 

 Jicarilla peak, and the ridge between it and the Truchas peaks. 

 Of these cirques, twenty-five open toward the east, thirteen 



