Table 39 . - - Fires by general cause according to number, acreage, and percentage, 1940-58 



Year 







Li 



ghtning 







Man 



-caused 









Total 





1/ 

 Num- 

 ber 



Per- 

 cent 



* 2/ 

 Acre s 



Per- 

 cent 



Num- 

 ber 



Per- 

 cent 



£ / 



Acres - 



Per- 

 cent 



Num- 

 ber 



n 3/ 

 Acres — 



1940 

















130 



100 











130 



4 , 500 ,000 



1941 

















116 



100 











116 



3,645,774 



1942 













Not 





78 



100 





Not 







78 



452 , 510 



1943 



40 



20 



6 



available 



154 



79 



4 



available 







194 



666 ,773 



1944 



18 



24 



6 







55 



75 



4 









73 



110,604 



1945 



30 



42 



2 







41 



57 



8 









71 



117,313 



1946 



52 



40 











78 



60 













130 



1,436,597 



1947 



32 



20 



1 







127 



79 



9 









159 



1 ,429,896 



1948 



21 



15 



7 







113 



84 



3 









134 



33,676 



1949 



7 



13 



2 







46 



86 



8 









53 



17,933 



Total 



200 



17 



6 







938 



82 



4 









1,138 



12,411,076 



Av. 



20 











94 













114 



1 ,241,108 



1950 



27 



12 







445,595 



21. 6 



197 



88 







1 , 612 ,222 



78 



.4 



224 



2 ,057,817 



1951 



27 



10 







17,484 



8.0 



244 



90 







202 ,210 



92 



.0 



271 



219 , 694 



1952 



11 



8 



1 



14,556 



19.7 



125 



91 



9 



59 ,245 



80 



. 3 



136 



73,801 



1953 



75 



26 



3 



381,143 



81.6 



210 



73 



7 



85,605 



18 



.4 



285 



466,748 



1954 



63 



24 







1,347,990 



97.0 



199 



76 







41,930 



3 



.0 



262 



1,389,920 



1955 



26 



13 



7 



10,467 



28.1 



164 



86 



3 



26,765 



71 



.9 



190 



37,232 



1956 



63 



28 







446,531 



93.7 



162 



72 







30 ,011 



6 



.3 



225 



476 , 542 



1957 



164 



40 



7 



4,773,323 



94.8 



239 



59 



3 



261,231 



5 



.2 



403 



5,034,554 



1958 



90 



31 



7 



228 , 637 



72.4 



194 



68 



3 



87,223 



27 



.6 



284 



315,860 



Total 



546 



23 



9 



7,665,726 



76.1 



1,734 



76 



1 



2 ,406 ,442 



23 



.9 



2,280 



10,072,168 



Av. 



61 







851,748 





192 







267,382 







253 



1,119,130 



Source: 1/ 1940-1945 Data from files at BLM office, Anchorage. 



1946-1958 Annual reports of the Director, BLM (Statistical Appendix). 

 2/ Computed from annual fire reports on file at BLM office , Anchorage 



and from individual fire reports. 

 _3/ 1940-1945 Forestry Program for Alaska. 



1946-1958 Annual reports of the Director, BLM (Statistical Appendix). 



147 



