File:Forest trees of the Pacific slope (1908) (14593875600).jpg

Identifier: foresttreesofpac00unit (find matches)
Title: Forest trees of the Pacific slope
Year: 1908 (1900s)
Authors: United States. Forest Service Sudworth, George Bishop, 1862-1927
Subjects: Trees Forests and forestry
Publisher: Washington Govt. Print. Off
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: University of Toronto

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
n of its quality and other characteristics. The fairly abundant occurrenceof the tree may render the wood, which is probably similar to that of the east-ern paper birch, of commercial importance for some of the same purposes (smallturnery, etc.) for which that timber is extensively used. Longevity.—No records are available of age. Western British America and Alaska from Saskatchewan River and northern Rockiesnorthward to mouth of Mackenzie River; on south side of Endicott Range, in Alaska,and westward to the Arctic Ocean and Bering Sea ; and south to sea side of AlaskanPacific coast ranges. Distrilnition imperfectly known. Western Canada.—Saskatchewan River and westward from Prince Albert (aboutlat. 58°, long. 106°) ; northward (probably only near eastern base of Rockies), to FOREST TREES OF THE PACIFIC SLOPE. 259 Liard River, here crossing to interior plateau west of Rockies. Throughout MaclienzieR.ver Valley northward from Great Slave Lake, reaching its northern limit at Great
Text Appearing After Image:
Pig. I13.-Betula alaskana: a, fruiting twig; h, seed, natural size and enlarged threetimes ; o, cone scale, twice natural size. fxTend^nf l, f °^ ^^ ^^^^^ of Rockies, probablyextending southward m British Columbia only to Stikine River; little, however, is 260 FOREST TREES OF THE PACTFTC SLOPE. known now of its southern limit. Extends down Stikine River to Kloochman Canyon(wliere river crosses coast range) ; occurring frequently with spruce and cottonwoodsnorthward throughout region east of coast ranges, except on Vpper Telly River aboveHoole River. Locally noted on Dease River, headwaters of Liard River northward toFrances Lake, where timber line is about 4,000 feet; on Stewart, Klondike, McQuestion,and Yukon rivers; at Dawson, Fort Selkirk, on Feels River, and at Fort Simpson.Lewes River, but not above head of Fifty-mile River between Lake Marsh and LakeLebarge. Alaska.—Probably not on sea side of coast mountains, except at Lynn Canal andwest of it, on K

Note About Images