30 WESTERN YELLOW PINE IN ARIZONA AND NEW MEXICO. 
Both Mr. A. B. McGaffey and Mr. Charles F. Wade, of Albu- 
querque, N. Mex., remember a section within the Zuni National For- 
est on private land that cut slightly over 7,000,000 board feet, though 
exact figures are not available. Mr. Wade reports that during the 
period from June, 1907, to May, 1910, the largest cut from any sec- 
tion of which he has knowledge was 5,458,256 board feet. What he 
considers an average cut during this period from 6,720 acres totaled 
35,282,462 board feet, or 5,250 board feet per acre. This would 
amount to approximately 3,333,000 board feet per section. As a 
guide in cruising, a poor stand might be considered as running 
1,000,000 feet to the section, a fair stand 2,000,000, a good stand 
3,000,000, a heavy stand 4,000,000, and a very heavy stand 5,000,000. 
These figures, of course, are merely an. approximation. 
MAXIMUM YIELD ON SAMPLE PLOTS. 
Maximum stands found on small areas prove that with artificial 
regeneration and a fully stocked stand, a large yield can be counted 
upon. Table 17 shows the yield upon twelve 10-acre sample plots on 
eight National Forests in the Southwest. As will be seen, the highest 
yield was found on the Jemez National Forest, where the sample plot 
averaged 1,303 board feet of blackjack and 15,800 feet of yellow 
pine per acre, or 17,103 feet in all. Next to this is the Coconino Na- 
tional Forest with 1,440 board feet of blackjack and 13,686 feet of 
yellow pine per acre, a total of 15,126 feet. The average of the twelve 
10-acre plots gives 1,457 board feet of blackjack and 9,665 of yellow 
pine per acre, or a total average per acre of 11,395 feet. 
TABLE 17.—Maximum yield per acre of western yellow pine from calipered 
sample plots. 











Forest. | Blackjack. ae Total. Forest. Blackjack. ae Total. 
| | 
Feetb.m.| Fectb.m.| Feetb.m. Feet b.m. | Feeib.m. | Feetb.m. 
Sitgreaves..... IR SYAl 10, 980 WPA Sil ||, 7AM seseeeae 591 9, 582 10, 173 
Date 1,061 7, 642 8, 703 1D) Ones 1,637 9, 060 10, 697 
DOR Senne 575 10, 751 TAG326" || Jemegues. sae. 1,303 15, 800 17, 103 
Dossy 2,160 8, 380 10,540 || Carson 2...... 579 12, 359 12,974 
Apache....... () (1) 14, 401 eS 
INEMINO) = Sseccc 5, 308 8, 041 13, 349 Average.... 1, 457 9, 665 311,395 
Coconino. ..... 1,440 13, 686 15, 126 ‘ 
1 Not separated. 2 Two 10-acre plots. 3 Includes Apache total. 
On very small areas the maximum stand sometimes far exceeds 
those just given in the table, a fact due to the natural grouping or 
crowding so characteristic of the species. Five 1-acre plots on the 
Carson National Forest averaged 622 board feet of blackjack and 
26,730 feet of yellow pine, a total of 27,352 board feet per acre. Per- 
haps the heaviest yield of western yellow pine for an area of 2 acres 
within the Southwest was found in the Tusayan National Forst. 



