52 
126°W 
; 
32 
| x 
| | 
34|— 
B 
D 
42 
= 
40 
roy 
38 
ro) 
36 
34 
32-— a 6 
Ms Pinus balfouriana 
x Isolated occurrence 
Limits of Pznus artstata (see map 21) 
) 100 BO 300 MILES 
6 100 200 300 400 KILOMETERS 
30 . io 
124 122 120 8 6 
Map 20 
