394 



FOREST TREES OF THE PACIFIC SLOPE. 



California (southward on Sierra Nevada to east fork of Kaweah River), Idaho, Mon- 

 tana, and Colorado (eastern slopes of Rocky Mountains), western Nebraska (Sioux 

 and Scotts Bluff counties), eastern New Mexico, and Arizona. A tree on coast of 

 Vancouver Island, Blue Mountains of Oregon, and in canyons of Idaho, New Mexico, 

 and Arizona ; elsewhere shrubby. In general, at 5.000 to 6,000 feet, but at north down 

 to sea-level. 



Alaska. — North along coast to head of Lynn Canal (lat. 60°), along rivers, probably 

 only extending inland to altitude of few hundred feet, though also noted on east side of 

 Coast Range on Stikine River above' its canyon. Noted on Trince of Wales Island and 



FIG. 186. — Acer glabnun. 



at Lynn Canal at Chilkoot at outlet of Chilkoot Lake, at mouth of Chilkat River, and 

 at Pyramid Harbor. 



Canada. — Usually below 6,000 feet. East to east side of Continental Divide at Kana- 

 naskis (altitude 4,200 feet) in Bow River Valley and to South Kootenai Pass. North 

 about to latitude 51°. Noted above Morley (altitude 4,067 feet) and at Banff (alti- 

 tude 4,521 feet) in Bow River Pass, mountains near Waterton Lake, at Spence's 

 Bridge (just above mouth of Thompson River), and on Vancouver Island at Victoria, 

 Esquimo, Gordon River Valley, and Renfrew region. 



