The size of a forest or wildfire may be classified based on acreage.
Parameters:
(1) number of acres affected
Number of Acres
|
USDA Forest Service
|
Heinselman (1981)
|
<= 0.25 acres
|
A
|
small
|
0.26 to 9.99
|
B
|
small
|
10 to 99.99
|
C
|
small
|
100 to 299.99
|
D
|
medium
|
300 to 999.99
|
E
|
medium
|
1,000 to 4,999
|
F
|
large
|
5,000 to 9,999
|
G
|
large
|
>= 10,000
|
G
|
very large
|