June 15, 1925 
Natural Reproduction after Fires 
1181 
the first burn, and on the south and 
east aspects killing all trees except an 
occasional larch. On the north slopes, 
particularly the lower parts, several 
large western larch survived the 1910 
burn but were killed in 1919. The 
north aspect also showed patches of 
reproduction which followed the 1910 
fire and which escaped the 1919 fire. 
Beginning at 4,100 feet elevation, 
seven radiating strips were run down to 
the river, some of them shown in 
1 . Insufficient natural reproduction on all as¬ 
pects. 
2 . Deplorably small numbers of white pine 
everywhere. 
3. Restocking up to 200 seedlings per acre of 
western larch on north aspect. 
The western larch reproduction con¬ 
sisted of 2, 3, and 4 year old seedlings, 
the largest percentage by far being 
4-year-olds which followed the 1919 
burn. Seedlings of white pine occur¬ 
ring on the double burn were found to 
be 1, 2, and 4 years old. There was no 
■>^?/?prOX//77o'f'e /oc&f/o/? of 
courrf sfr/ps. 
Fig. 2.—Map of portion of 1910 burn, Trail Creek 
Plate 1, A. Reproduction was counted 
on these strips. In addition, six 
plots—one of one-tenth acre, the rest 
one-quarter acre—were established on 
the different strips at intermediate 
elevations. Four of these are shown 
in the illustration; all can be seen in 
Figure 1. The seedlings on the plots 
were counted and staked, with the 
results given in Table I. The re¬ 
production on these plots will be 
examined in later years. The main 
deductions from Table I are: 
evident relation between the original 
stand and the reproduction, except in 
the case of western larch. 
The fact that 1-year-old seedlings of 
white pine, and occasional seedlings of 
Douglas fir, and even white fir, from 1 
to 4 years old, were found, indicates 
strongly that a very sparse long-range 
seeding is in progress. If white pine 
only had been found it might have been 
assumed, as one possible explanation, 
that the seed had been scattered in 
1919 at the time of the fire, and that 
