NATURAL AREAS AND REGIONS 



227 



Caribou National Forest (Idaho and 

 Wyoming) 



The Caribou Forest (703,858 acres) 

 lies upon a series of mountain ranges of 

 moderate elevation in eastern Idaho. 

 Timber bodies are not extensive and 

 are largely limited to north slopes. 

 Cutting has been general especially 

 toward the south end of the Forest. 

 Grazing is general throughout the 

 Forest. The major types in order of 

 abundance are: sagebrush 29%, aspen 

 26%, lodgepole pine 14%, brush 11%, 

 Douglas fir 10%, grass 9%. 



Montpelier, Idahot O. S. L. R. R. 

 Supervisor's headquarters. 



Challis National Forest (Idaho) 



The Challis Forest (1,253,856 acres) 

 is located upon a broken mountainous 

 uplift marked by high rugged major 

 ridges, which are barren and rocky. 

 There is a state game preserve on the 

 Middle Fork of Salmon River and one 

 area in the north part of the Forest is 

 protected from grazing by domestic 

 stock in order to furnish fall and winter 

 game range. A larger area adjoining is 

 virtually ungrazed because of the den- 

 sity of the timber. High ridges are 

 barren and not grazed. Timber cutting 

 is unrestricted, but is limited so far 

 chiefly to one area around Bonanza. 

 The major types in order of abundance 

 are: lodgepole pine 50%, subalpine 28%, 

 Douglas fir 7%, sagebrush 6%. 



Inaccessible parts of this Forest con- 

 tain many deer, mountain goats, and 

 bighorn sheep. There are abundant 

 spawning grounds for migratory fish 

 within the Forest, several species com- 

 ing from the Pacific Ocean to these 

 grounds. 



Challis|. Supervisor's headquarters. 



Dixie National Forest (Arizona, Nevada 

 and Utah) 



The Dixie Forest (795,000 acres) lies 

 in southern Utah upon two uplifts, 

 the Markagunt Plateau and the Pine 

 Mountains, both largely composed of 



igneous rocks in their higher forested 

 parts. Small isolated units occur in 

 Arizona and Nevada. Grazing is un- 

 restricted and fairly heavy, the only 

 ungrazed parts are the extensive lava 

 beds of the Sevier Forest proper. Much 

 of the timber in the upper mountains is 

 virgin. Cutting is nowhere prohibited. 

 The entire Dixie division is a game 

 preserve together with a small area in 

 the north part of the Sevier division. 

 On the Dixie division the main types are: 

 pinyon-juniper 57%, brush 25%, western 

 yellow pine 9%, sage 7%. On the Sevier 

 division they are: western yellow pine 

 39%, pinyon-juniper 19%, brush 9%, 

 Engelmann spruce 8%, barren 8%. 



Navajo or Duck Lake is interesting, 

 since it discharges through sinks and 

 is probably a solution lake. Occa- 

 sionally the water becomes sufficiently 

 low that the sinks are exposed. 



Cedar City, Utahf. Supervisor's 

 headquarters. 



Fillmore National Forest (Utah) 



The Fillmore Forest (701,696 acres) 

 lies upon the Tushar Range (high, 

 volcanic) and the Pahavnt Plateau 

 (lower, sedimentary). It is not ex- 

 ceptionally well forested and is all cut- 

 over to some degree, except three virgin 

 areas, two in Beaver Creek drainage and 

 one in Chalk Creek drainage. The 

 major types in order are: pinyon- 

 juniper 35%, Douglas fir 26%, brush 

 19%, Engelmann spruce 8%, sage 5%. 



Richfieldt D. & R. G. R. R. 

 Supervisor's headquarters. 



Fishlake National Forest (Utah) 



The Fishlake Forest (665,275 acres) 

 lies upon the Fishlake Plateau and a 

 part of the Sevier Plateau in central 

 Utah. The Forest has been heavily 

 culled and grazing is general throughout 

 its area. There are no permanently 

 protected areas on the Forest, although 

 there is one area of virgin timber on 

 Thousand Lake Mountain. A small 

 area at Fish Lake has almost complete 

 protection from grazing. Nearly the 



