55 



The average or mean elevation of the several political divisions is given 

 by good authorities as follows: Montana, 3,000 feet; Idaho, 4,700 feet; 

 Wyoming, 6,000 feet; Colorado, 7,000 feet; New Mexico, 5,600 feet. 



The approxinjate mean elevation of the Idaho and Montana ranges 

 is 8,000 feet; of the Wyoming ranges, 9,000 feet. The mean height ot 

 the Colorado and New Mexico system, south to the latitude of Santa 

 Fe, is about 10,500 feet. 



In Montana two mountains reach an elevation of 8,355 and 10,629 feet 

 respectively. Eleven peaks in Idaho range in height from 9,100 to 

 13,601 feet. In Wyoming fifteen of the i)rincipal peaks range in alti- 

 tude from 9,273 to 13,790 feet. The best known and named peaks of 

 the Colorado sj^stem, sixty-seven in number, vary in height from 10,906 

 to 11,164 feet. Seventy- two other peaks in the same State, betw^een 

 13,500 and 14,300 feet in height, are unnamed. Two prominent mount- 

 ains in New Mexico have an elevation, one of 11,200 feet and the other 

 of 12,202 feet; while Utah boasts of seventy-live peaks above 10,000 

 and fourteen above 12,000 feet, the highest being Mount Eaimons, with 

 13,694 feet. 



Elevation of timlyer-line on soyne of the mountains in the EocJcy Mountain region.* 

 [Taken from Dictionary of Altitudes, U. S. Geological Survey.] 



Mountain. 



COLORADO. 



Arapahoe Peak 



Mount Audubon 



Bald Mountain 



Buffalo Peak 



Mount Byers , 



Crestone 



Cunuinfrham Pass 



Mount Elbert 



Mount Enselmann 



Mount Evans 



Mount Evans 



Gray's Peak 



Grizzly Peak 



Mount Guyot. , 



Hamilton Pass 



Mount Harvard 



James' Peak , 



La Plata Mountain ... 



Lillie's Mountain 



Mount Lincoln 



*Capt. E. L. Bertlioud, a civil engineer, of Golden, Colo., and a good authority, referring to a mount- 

 ain range about 8 miles southwest of Georgetown, Colo., aays: "Across the 'narrow valley north of 

 McClellan Mountain, and upon another high peak, the limit of tree growth exceeds 12,400 feet eleva- 

 tion on the south slope of that peak. Here can be seen Finns aristata, some of the trees 2 feet in 

 diameter and 30 feet high, that retain their hold and slowly increase iu size, thus maintaining them- 

 selves in respectable numbei s in spite of furious gales of siiow and wind, and an extreme arctic cold." 



SURROUNDINGS. 



The Great Plains" lie contiguous to and eastward of the Eocky 

 Mountains, but how far to the east they extend — at what point the 

 ^•plains'' (so long a synonym for sterility) end, and the prairie, or fruit- 

 ful country, begins, is not easily determined. It is safe to say, how- 



Timber- 

 line. 



Feet. 

 11, 100 



11, 325 

 11, 100 



12, 041 

 11,4')0 

 12, 107 

 11. 500 

 11,871 

 11, 578 



11, 723 

 11,300 

 11, 100 

 11,758 i 

 11,811 ! 

 10,840 ] 

 12, 117 j 

 11, 100 



12, 080 



11, 100 



12, 051 



Mountain. 



COLOUADO— continued. 



Long's Peak 



Massive Alountain 



Park A^ew Peak... 



Pike's Peak 



Mount Powell 



Mount Princeton 



Ked j\Iountaiu „ 



Mount Rito Alto 



Sierra Blanca 



iloant Silveiheels 



White Rock Mountain 



MONTANA. 



Mount Black more 



Mount Delano 



Electric Peak 



UTAH. 



Gilbert's Peak 



Timber- 

 line. 



Feet. 

 11, 100 

 1],6U7 

 11,100 

 11,720 

 11, 600 

 11, 500 

 11, 746 

 11, 817 



10, 410 



11, 549 

 11,919 



9, 550 



8, 784 



9, 442 



11,100 



