390 WALLACE W. ATWOOD AND KIRTLEY F. MATHER 
San 
sy 
ee 
& 7 Pagosa Springs 
oS 2 
x 
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ES x 
x 
Ss 
ae 
a 
1 hie Ee Coloradare eae 
«| New Mexico .€ 
im oi SKETCH MAP 
of the 
SAN JUAN REGION 
0 5 10 15 20 Miles 
Limits of glaciation 
Uinta ..- Bighorn. -.—+—+ - San Juan se 
San Juan Drift 
Jewels ar 
