NATURAL AREAS AND REGIONS 



237 



Within each area are several plots of 

 from 4 to 12 acres on which all trees are 

 numbered and located on a map. 

 Diameter and height measurements 

 are made every 5 years. Progress of 

 reproduction is checked annually. A 

 few of these small plots are fenced 

 against all grazing, but this condition 

 will be maintained only until reproduc- 

 tion is established. All but S-6 are 

 subject to future cutting in 50 to 75 

 years. Established 1909-1913. 



FlagstaffI, A. T. & S. F. R. R., 10 

 to 30 mi. Detailed information at 

 Southwestern Forest Experiment Sta- 

 tion. — G. A. Pearson. 



Sample plots wilhin National Forests 

 (New Mexico) 



Datil National Forest. Sample plots 

 SIA, SIB, S2A. Area about 10 acres 

 each. SIA and SIB are in a canj^on at 

 about 8300 ft. elevation. The composi- 

 tion is western yellow pine, Douglas 

 fir and limber pine. Plot S2A is com- 

 paratively level, pure western yellow 

 pine. All plots logged and established 

 1910; all are grazed. Trees numbered 

 and mapped, diameters and heights 

 measured every 5 years. 



MagdalenaJ, A. T. & S. F. R. R., 

 Supervisor's headquarters. 



Gila National Forest. Sample plots 

 SIA and S2B. Area 6 acres each, practi- 

 cally pure western yellow pine, about 

 707c cut. Plots established 1911. Trees 

 measured every 5 years. Both plots 

 are grazed. 



Silver Cityt, A. T. & S. F. R R., 

 Supervisor's headquarters. 



Santa Fe National Forest. Sample 

 plots, Pecos SIA and SIB and Jemez 

 SIA and S2A and S3A. Area G acres 

 each; western jellow pine with varying 

 mixture of Douglas fir and limber pine. 

 Altitudes around 7500 ft. All plots cut, 

 removing 60 to 70%, and all grazed. 

 Established 1911. 



Santa FeJ, A. T. & S. F. and D. & 

 R. G., Supervisor's headquarters. — 

 G. A. Pearson. 



10. NATIONAL FORESTS OF THE 



ROCKY MOUNTAIN 



DISTRICT (2) 



By C. G. Bates 



There are 26 National forests in this 

 district, Colorado having 15, Wyoming 

 5, South Dakota 2, Nebraska 1, Michigan 

 1 and Minnesota 2. 



Owing to the extremely diverse clima- 

 tic conditions found in going from South 

 Dakota to the Rocky mountains, from 

 the southern border of Colorado to Min- 

 nesota, and from the western to the 

 eastern slope of the Rockies it has been 

 thought best to give a detailed account 

 of each forest rather than to attempt 

 a general description for the entire 

 district. 



For the sake of brevity and to avoid 

 monotony, a tabulation is given be- 

 low showing the name and area of 

 the forest, the supervisor's headquarters 

 and the directions for reaching it. 

 Under each description there is given a 

 brief account of the plant and animal 

 life, the special physiographic features 

 and the natural areas reserved or suita- 

 ble for reservation. 



NATIONAL FOREST 



HEADQUARTERS TOWN 



DIRECTIONS FOR REACHING HEADQUARTERS 



ACREAGE 

 OF THE 

 FOREST 



Colorado (15) 



Arapaho 



Cochetopa 

 Colorado 



Grand Mesa 

 Gunnison 



Hot Sulphur 



Springs 

 Salida 

 Ft. Collins 



Grand Junction 

 Gunnison 



D. & S. L. R. R. from Denver 



D. & R. G. W. R. R. 



C. & S. R. R. and U. P. R. R. from 

 Denver or Cheyenne 



D. ct R. G. W. R. R. 



D. & R. G. W. R. R. (narrow gauge 

 from Grand Junction or Salida) 



634,284 



907,000 

 853,641 



660,823 

 905,382 



