Apr. 15, 1925 
TJse of Liability Eatings in Forest Fire Protection 
715 
• Yellow pine (l58firea) 
X Pinon -Juniper (98 fires) 
o Douglas fir (50fires) 
H Grass (84 fires) 
* Brush (26fires) 
1 Spruce (35fires) 
Fig. 16.— Northern New Mexico and southwest Colorado 
(Region 19) : Relation of size of fire to time elapsed between 
discovery and attack 
Note— Data from Region 18 used also for brush, grass, 
Douglas fir, and woodland, and data from Region 20 for 
Douglas fir. 
