ITINERARY. Ill 



where unirrigated. Below Grand Junction the lowest alti- 

 tude in the State is reached. 



In the High Mountain and Foothill* Areas the rocks are 

 quite largely metamorphic and the soils are constituted 

 accordingly. In the Elk Mountains near Crested Butte and 

 Ruby there are extensive outcroppings of slate and coal. 

 In these mountains collections were made at Crested Butte, 

 Rogers, Keblar Pass and Ruby. 



The Elk Mountains are a wonderful range of high, 

 closely set, jagged peaks, well watered, richly clothed with 

 spruce forests and other vegetation undoubtedly richer in 

 this respect than any other mountains of Colorado. They 

 are remote, rarely visited, and together form the richest and 

 most promising high-mountain botanical field in the State. 

 Deep forests, meadows, open glades and parks, dripping 

 cliffs, and springs and streams everywhere, altogether furnish 

 a most remarkable field for plants of all groups. 



Later on when our Botanical Gardens and Universities 

 establish their substations for Experimental Ecology and 

 similar work, there should certainly be one here. 



In the High Mountain Area collections were also made 

 at and near Marshall Pass, at Carson in the Cochetopas, at 

 Ouray and on the surrounding hills in the San Miguels, and 

 on the summit of the Grand Mesa. 



In the Foothill Area, collections were made at Jack's 

 Cabin, Sargent's, Doyle's, Gunnison, lola, Sapinero, the 

 Black Canon, Cimarron, at Van Boxle's Ranch above Cimar- 

 ron, on Poverty Ridge near Cimarron, on the Black Mesa at 

 the head of Crystal Creek, and on Cerro Summit. 



In the Desert Area collections were made at Cedar Creek, 

 Montrose, Cedar Edge, Deer Run, and Grand Junction. 



* This term may be objected to as not equivalent to the Foothills on 

 the east slope. But neither would the Desert Area here be equivalent to 

 the Plains on the east. 



