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NATURALIST'S GUIDE TO THE AMERICAS 



Mamano National Forest (New Mexico) 



Area 702,208 acres. Coniferous for- 

 est, including woodland, yellow pine, 

 Douglas fir and Engclmann spruce, up 

 to 11,000 ft. ; small lumbering operations. 



Albuquerquet, Supervisor's headquar- 

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



Prescott National Forest (Arizona) 



Area 1,447,024 acres, coniferous forest 

 with some oak woodland. Only the 

 forest types below the Engelmann 

 spruce are represented. Altitudes 

 range from 2000 to 8000 ft. 



Prescottt, A. T. & S. F. R. R., Super- 

 visor's headquarters. 



Santa Fe National Forest (New Mexico) 



Area 1,364,585 acres. Coniferous for- 

 est, including all forest types to timber 

 line; altitudes 6000 to 13,000 ft.; very 

 rugged topography, well watered; six 

 small sample plots. Famous prehistoric 

 ruins of Rito de los Frijoles near Santa 

 Fe. 



Santa FeJ, Supervisor's headquarters, 

 A. T. & S. F. and D. & R. G. Railroads. 



Sitgreaves National Forest (Arizona) 



Area 631,474 acres, mainly virgin 

 western yellow pine, though small areas 

 of Douglas fir may be found. Alti- 

 tudes range between 5000 and 9000 ft. 

 The topography is characterized by 

 high, comparatively level tablelands 

 dissected by deep, precipitous canyons. 



Holbrookl, A. T. & S. F. R. R. Super- 

 visor's headquarters, 35 mi. by automo- 

 bile stage. 



Tonto National Forest (Arizona) 



Area 2,112,888 acres. Relatively small 

 areas bear a true forest, the greater 

 portion being desert brush or woodland, 

 which are included because of their 

 watershed value. The famous Roose- 

 velt Dam and Reservoir and the Natural 

 Bridge are located on this Forest. 

 Roosevelt Lake is a game preserve. 



Rooseveltt, 38 mi. from Globe, A. E. 



R. R., and 60 mi. from Phoenix, A. E. 

 and A. T. & S. F. R. R., reached from 

 either place by automobile stage. Super- 

 visor's headquarters, Phoenix. 



Tusayan National Forest (Arizona) 



Area 1,289,351 acres. This Forest is 

 generally similar to the Coconino which 

 it adjoins on the west. To the north 

 lies the Grand Canyon National Park. 

 One permanent sample plot. 



WilliamsJ, A. T. & S. F. R. R., Super- 

 visor's headquarters. 



Jornado Range Reserve (New Mexico) 



Area about 200,000 acres; desert 

 plains and foothill country, ranging 

 from 4000 to 7000 ft. in altitude. No 

 forest occurs within the reserve. The 

 prevailing vegetation includes grama 

 grasses, tobosa (Hilaria mutica), drop 

 seed (Sporobolus), creosote bush (Covil- 

 lea iridentata) and mesquite (Prosopis 

 glandulosa). The area is maintained 

 for the purpose of carrying on experi- 

 ments and demonstrations in range 

 management. 



Las CrucesI, headquarters of Grazing 

 Examiner in charge; A. T. & S. F. R. R. 



Santa Rita Range Reserve (Arizona) 



About 49 sq. mi. of desert and semi- 

 desert, fenced against cattle from 1903 

 to 1915. Since the latter year it has 

 been handled by the Forest Service as an 

 experimental range for livestock. Much 

 research work has been done on the 

 succession of natural types of vegeta- 

 tion. Altitudes 3000 to 5000 ft. 



Tucsonf, S. P. R. R., headquarters 

 of Grazing Examiner in charge. 



Sample plots within National Forests 

 (Arizona) 



Coconino and Tusayan National For- 

 ests. Sample plots S-1 to S-6 inclusive. 

 The areas vary from 120 to 480 acres. 

 All are in pure yellow pine stands at 

 altitudes around 7000 ft. All but plot 

 S-6 have been cut, removing 40 to 70% 

 of the timber. Topography: gently roll- 

 ing; soil clay loam derived from basalt. 



