UNIVERSITY OF CALIFORNIA 



Map of the Yosemite "sot^tion" of the Sierra Nevada, showing the area covered in tlie accompanying report, the>ollecling stations occuijieil, the routes of travel followed by members <A thr \[i 



Orange = Lower Sonoran Zone. Yellow = Upper Sonoran Zone. Blue = Transition Zone. Green = Canadian Zone. Violet = Hu 



