﻿NO. 10 



SMITHSONIAN EXPLORATIONS, I923 



what is more recently known as Knowles Canyon. They had with them 

 at this time only their saddle animals and one pack mule, but to afford 

 some understanding of the topography of the entire region traversed 

 by the expedition it may be noted that, in leaving Moki Canyon, 

 Messrs. Judd and W'etherill progressed only 15 miles in six hours' 

 time and then, at dark, found themselves less than 2 miles from their 

 last previous camp. 



With the party reunited at its Lake Canyon cache the return trip to 

 Kayenta was begun. Although handicapped by rain and dense fog 



(A. J^^M 



Fig. 78. — Thin lingers of pink and red sandstone tower alxixe the yeUow 

 floor of Monument Valley pointing the height of the rock mesas that once 

 covered northern Arizona. (Photograph by E. L. Wisherd. Courtesy of 

 the National Geographic Society.) 



which for three days almost obscured the dim Indian trail they were 

 following, members of the expedition finally crossed the Rio San Juar 

 immediately north of Navaho Mountain and thence visited the Rain- 

 bow Natural Bridge. Mr. Judd, as assistant to Dean Byron Cum- 

 mings, was a member of the party which discovered this great stone 

 arch on August 14, 1909. 



The results of these recent explorations north of the Rio San Juan 

 in Utah indicate the desirability of further, more extended archeologi- 

 cal investigations ; it is felt that the botanical and l)iological sciences 

 would profit to a less degree. Animal and plant life in this region, 



6 



