\\ ' A STUDY OF NATURAL REPRODUCTION 
\ DOUGLAS FIR 
E IN 1913 BY 
MAD! 
WIND RIVER EXPERIMENT STATION 
ON THE 
YACOLT BURN OF 1902. COLUMBIA NATL FOREST 
WASHINGTON 
Seale 4°=Imile Contour Interyal 100" 
Topogrephy by Wernstedt BKracbel Mapped by Gi nvut 
Legend 
ASS Ss . 1234.5 Years old [4 67,8810 Years old WYeors old 
=, ~ AN WY Each loasernewraicare =) [Eek laopuchicre acicara atta eee wyparatee re certs 
Scwesiey SS 12, 878810 %earsold = [Ul Years od 
se ea Sn . Over500 per Acre Over 500 per Acre 
ees RS Noble Fir White Pine 
Sees RS NV vs A Amabali H. western Hem 
Se ESS x BETAS ue ougia: © Wester 
ease STEEN ANN, ‘ x 
Sees Rt EEN OY HAN Sea Sen 
WSS SN os 
CY OD 
SS NN Ss SS SK 
SER SN 
ORO 
RRR 
Over |00yrs old 
TT 
ae 
ZA 
\ 
2] oD 
S, ST \ 
K 
~ 
ea s SS 
Ss =<" tx 
SRG Set RSA 
\ 
= ra 
SS, 
Ni 
Nii 
shown, 00634—24. (Face p, 20.) f1, 
19. 3.—Map of township {n Yacolt burn, ‘Transects and reproduction after fire are 
> aa 
