WESTERN YELLOW PINE IN OREGON. 
25 
From these tables it is possible to determine what height and what 
diameter a yellow pine may be expected to reach in 50, 100, or 150 
years under each of the several sets of conditions which each locality 
typifies. These data were of course collected in virgin forests. A 
comparison of the growth of the present young trees with the growth 
of the old trees when they were young, and of the growth of trees 
of various sizes, indicates that the young, thrifty trees now are 
growing at the same rate that their parent trees did when they were 
of the same age. It is fair to assume, therefore, that future growth 
in the natural forest will be at the same rate. 
Table 9. — Average total height of yellow-pine trees at various ages for 13 typical stands 
in several localities in Oregon. 
Locality. 
Basis: 
Num- 
ber of 
Age of trees in years. 
50 100 150 200 250 
350 400 
Total height in feet. 
Austin and Whitney, Grant and Baker 
Counties 
Lookingglass Creek, Union County 
Ochoco Creek, Crook County 
Mill Creek, Crook County 
Tamarack Creek, Wasco County 
Metolius Creek, Crook County 
Sisters, Crook County (1) and (2) 
Bend, Crook County 
Lapine, Crook County (1) and (2) 
Lapine, Crook County (3) 
Fort Klamath, Odessa, Meadow Lake, and 
Keno, Klamath County 
Crystal Creek, Klamath County 
Embody, Lake County 
437 
588 
187 
224 
125 
131 
57 
460 
86 
22 
Total.... 
Average . 
62 
104 
79 
88 
95 
95 
79 
82 
81 
90 
92 
120 
100 
115 
93 
107 
106 
113 
105 
106 
139 
ill 
90 I 104 
110 
11!) 
101 
118 
10S 
124 
91 
91 
111 
116 
111 
110 
97 
111 
115 
121 
104 
124 
109 
129 
92 
92 
117 
122 
118 
149 
103 
115 
117 
122 
106 
126 
10!) 
130 
93 
121 
125 
121 
150 
108 
11!) 
119 
123 
107 
129 
109 
130 
122 
126 
124 
150 
113 
120 
Table 10. — Average diameters of yellow-pine trees at various ages for 18 typical stands 
in several localities in Oregon. 
Locality. 
Basis: 
Num- 
ber of 
trees. 
Age of trees in years. 
50 100 150 | 200 j 250 I 300 I 350 I 400 
Diameter in inches outside bark at breastheight. 
Austin and Whitney, Grant and Baker 
Counties 
Lookingglass Creek, Union County 
Parker's Mill, Morrow County 
Winlock's Mill, Wheeler County 
Ochoco Creek, Crook County 
Mill Creek, Crook County 
Tamarack Creek, Wasco County 
Metolius Creek, Crook County 
Sisters, Crook County (1) 
Bend, Crook County 
Lapine, Crook County (1) 
Lapine, Crook County (3) 
Fort Klamath, Klamath County 
Crystal Creek,Klamath County 
Odessa, Klamath County 
Meadow Lake, Klamath County 
Keno, Klamath County 
Embody, Lake County 
672 
409 
245 
407 
474 
405 
238 
66 
2(57 
183 
361 
91 
110 
87 
156 
245 
52 
400 
4.0 
6.6 
3.0 
2.5 
4.4 
4.1 
5.0 
4.4 
3.9 
4.7 
2.8 
3.4 
5.9 
10.6 
4.5 
5.0 
5.7 
3.5 
Total.... 
Average . 
4.7 
10.8 
14.1 
10.2 
9.9 
12.3 
11.6 
14.6 
13.1 
12.8 
15.4 
9.6 
11.5 
17.1 
22.2 
13.9 
13.3 
14.0 
10.5 
13.2 
15.7 
19.4 
15.8 
15.2 
18.2 
17.6 
20.5 
19.1 
18.6 
20.7 
17.9 
20.2 
24.3 
28.5 
20.0 
19.3 
20.0 
16.1 
19.3 
19.4 
22.7 
20.2 
19.0 
22.1 
22.0 
24.0 
23.6 
22.7 
24.4 
23.2 
26.0 
28.2 
33.1 
23.8 
23.3 
23.5 
20.1 
22.2 
25.5 
24.2 
22.7 
25.2 
25.6 
26.2 
27.1 
25.8 
27.3 
27.4 
29.9 
31.2 
37.0 
26.5 
26.5 
26.1 
23.1 
24.4 
29.0 
27.8 
26.4 
27.8 
28.4 
28.1 
30.0 
28.8 
29.9 
30.6 
32.8 
33.8 
40.7 
28.8 
28.8 
28.3 
25.5 
29.4 
26.5 
32.7 
30.8 
30.0 
29.7 
30.6 
29.7 
32.2 
31.3 
33.2 
35.1 
36.3 
30.9 
30.7 
30.1 
27.8 
31.1 
28.4 
34.1 
33.4 
33.0 
30.7 
32.4 
31.0 
33.8 
33.6 
35.5 
36.7 
38.5 
33.0 
32.5 
31.7 
29.9 
30.0 
