Area Burned-Acres 
714 
Journal of Agricultural Research 
Vol. XXX, No. 8 
LE6END Hours Elapsed 
o Douglas fir (^ofiresf^ FlG - 15.—Colorado Plateau (Region 18): Relation of size of fire to 
f Alpine (do fires) time elapsed between discovery and attack 
X Pinon-Juniper (98fires) Note. —Data from Region 19 used also for Douglas fir, wood- 
* Brush (26 fires) land, brush, and grass, and data from Region 20 for Douglas fir 
a Grass (84fires) and alpine. 
