FOREST TYPES IX CENTRAL aOCKY MOUNTAINS. 



25 



Soil wells, representative of the high spn ated .-it Stations E 



and F, but none hero. Moisl raiinations every 6 d snseason. 



Summary. — In Tabic 1 is given a summary of the stations which 

 have been enumerated, the arrangement being in the general alti- 

 tudinal order in which the types appear. Within oup the 



stations appear in the order of their absolu .ion 



F-9 has been designated as representing a transit ion zone between 

 fir mid spruce for the reason, already staled, that the conditions 

 under the dense cover here, as shown by the reproduction, are more 

 favorable to the growth of spruce than of Douglas fir. The other 

 stations on the same slope, which are not so heavily shaded, and 

 which seem likely to reproduce to limber pine and fir, have been 

 classed as Douglas fir sites. 



Table 1. — List of stations from which data are drau 





Sta- 

 tion 

 num- 

 ber. 



Genera] locality. 



Geographic name. 



Lion. 



aracter of record- 1 



Vegetative type 

 represented. 



Tem- 

 perature 

 and 



only. 



More 



- 

 sive 



Soil 



Plains. 



C-l 



/ D-l 



f M-l 



\ F - 2 

 F-12 

 I P-6 



Pikes Peak 



Black I lills 



Southern Colorado 



Pikes Peak 



do 



do 



do 



Colorado Spri i 



Deadwood, S. Dak 



.j', Colo.. 



jfonumenl . Colo 



Fremont Station, Colo. 



do 



.do. .. . 



6, 098 



7,108 



9, 164 



10,300 

 8, 836 



9,360 

 9,121 



9,000 

 8, 560 



10,248 



9,099 



1 1 . 580 

 11,500 



X 



i 



X 



X 

 X 



X 



X 



I 



X 



X 

 X 



X 



f 



X 



I 



X 





Western yellow 



pine. 

 Western yellow 



pine. 



None. 

 M.&T. 



V F-13 



( F_1 



do 



Pikes Peak (con- 

 trol). 

 Pikes Peak 



do 



do 



do 



Temp. 

 M.&T. 



Pine-fir -j p_^ 



i 



X 

 X 



I 



X 



M.&T. 





I W-C 



F- 7-8 - 



F-17 

 W'-Al 



W-A2 



F-ls 



N-1 

 F-ll 

 L-2 



F-9 

 f F-3 

 F-5 

 L-l 

 W-D 



W-G 

 F-16 



Rio Grande Valley 



Pikes Peak 



Northern Colorado 

 Rio Grand Valley 



do 



North Central 

 Colorado. 



Western Slope. Colo. 

 Southern \\ yoming 

 Continental Di- 

 vide, Colo. 



Pikes Peak 



do 



Wheel Gap, 



Colo. 

 Fremont Station, Colo 

 Frances, Colo 



M.&T. 



Douglas fir 



Lodgepole pine.. 

 Fir-spruce 



Wagon Wheel Gap, 

 Colo. 



do 



Fraser, Colo 



Nast.Colo 



Foxpark, Wyo 



Leadville, Colo 



Fremont Station, Colo. 

 do 



None. 

 M.&T. 



None. 



M.&T. 



E n g p 1 m a n n 

 spruce. 



Timb rline scrub 



do 



do 



Bio Grande Valley 



do 



Pikes Peak 



do 



Fake Moraine, Colo... 



Wagon Wheel Gap, 

 Cole. 

 do 



F re mom Station, Colo. 



M.&T. 

 Temp. 



* In the first two columns under this caption th< '' ised as an affirmative sign with 



the subheadings. In the third column tin- abbreviation "M. & T." means thai both oil m -i hire and 

 soil temperature data have been secured. 



* Also F-i t and F-16 under different conditions of forest cover. 



THE GROWING SEASON. 



In the study which attempts to detail the climatic conditions of a 

 region in relation to vegetation, one can hardly fail to realize the 

 necessity for distinguishing between those conditions which char- 

 acterize the growing season and those which occur during the period 

 of rest. 



