De I. VNER VEW D Forest Trees of the Pacific Slope

52
FOREST TREES OF THE PACIFIC SLOPE.
murrayana) ranges from the coast and islands of Alaska southward mainly in the Immediate
vicinity of the Pacific coast of British Columbia, Washington, Oregon, and California
to Point Arena, Mendocino County, and Gasquet, Del Norte County. In this range
it grows commonly from near sea level to about 500 feet elevation, but forms of it are
reported in Washington and Oregon up to about 3,000 feet.
ALASKA AND CANADA.-From western Coast Range in British Columbia eastward to
plateau east of Rockies. At north, on Pacific slope at Chilcat Inlet, Square Island, and
Skagway at sea level, and up to 1,900 feet at Glacier Station. Headwaters of Yukon
River from north side of White Pass to Lake Le Barge, Lewes River, and thence down
Yukon River to point a few miles below Fort Selkirk (latitude 62° 45'). East of the
Yukon, northward on divide between Klondike and McQuestion rivers to latitude 64'
(northern limit now known), 80 miles east of Dawson, and eastward to Mayo Lake,
in same latitude; eastward on MacMillan River to a point 50 miles up the south fork,
and eastward on Pelly River, to longitude 133° 30'. Plateau east of Rockies, on Dease
and Liard rivers to Devils Portage, and on Peace River to hills between Athabaska
River and Lesser Slave Lake and Athabaska Landing. Follows eastern foothills of
Rocky Mountains southward, at about 4,000 feet elevation, on line of Canadian Pacific
Railroad, occurring from Silver City to Laggan, but not reaching timberline. At south,
eastward in Assiniboia to Cypress Hills, from summits of which it extends down 500
feet. Throughout interior mountain region of southern British Columbia above 3,500
feet, and below that on sandy benches and river flats.
WASHINGTON.-West of Cascades, on Pacific and Puget Sound shore and also away
from coast in bogs and about gravelly prairies below 3,300 feet. Noted at Westport,
McAllisters Lake. From Cascades eastward to northeastern and Blue mountains. Abundant
on east side of Cascades at from 3,300 to 5,000 feet, occasionally reaching 7,100
feet and descending to 1,500 feet; occurs sparingly on west side in Washington National
Forest at 3,000 to 5,000 feet near Darrington, on Sniattle River, State Creek, upper
Skagit River, and northward to the Canadian boundary. On east slope of Cascades
descends, on Stehekin River, to 2,100 feet; southern Washington National Forest, between
1,500 and 7,000 feet; Rainier National Forest, between 1,800 and 7,100 feet; ascends to
5,900 feet in Chelan Range; Blue Mountains, above 3,000 feet. Colville National Forest,
above 4,000 feet. Noted on Mount Rainier, Moumt Adams, Wenache Mountains, Falcon
Valley, Pend Oreille River, divide between Columbia and Yakima rivers, near Lake Cushman,
and between Union City and Shelton-south of Olympic Mountains.
OREGoN.-Sea beaches, bogs, creeks, and meadows to east slopes of Cascades (below
6,000). Noted at Seaside and Clatsop Beach (near Tillamook Head). Cascades and eastward
to Warner Mountains and Wallowa National Forest, generally between 4,000 to
8,000 feet; mainly on east side of Cascades, and only at high elevations on west side.
In northern Cascades, at 3,500 to 5,500 feet; noted on north side at Mount Hood from
3,100 (22 miles south of Hood River Station) to 5,000 feet; also on south side of
Mount flood, above Government Camp at over 2,500 feet and down west slope to
1,700 feet (mile east of Tollgate) ; Camas Prairie (south of Mount Hood). In southern
Cascades, on east side, at 4,200 to 8,500 feet, and at 6,200 to 8,000 feet on
west side. Eastward over upper Deschutes River Valley to Lava on Paulina Creek,
Paulina Lake and Pengras Ranch; farther south, to East Fork Deschutes, Walker Range,
and Sinks creeks at 4,900 to 6,300 feet. Mount Mazama, at 4,800 to 6,300 feet and eastward
to Fort Klamath, west shores Klamath Lake, and eastward on Klamath-Deschutes
Divide and ranges of Klamath River Basin to Warner Mountains between Goose and
Warner lakes. Noted in Goose Lake National Forest above 6,000 feet, east and north of
Gearhart Mountain, on Swamp Creek down to 5,500 feet, Elder and Bear creeks and westward
from Summer Lake to Sprague and Sycan river valleys. Reported from southern
coast range in Siskiyou National Forest. Blue Mountains, at 3,000 to 6,000 feet; here on
headwaters of North, Middle, and South forks of John Day River; region of Meacham;
headwaters of Grande Ronde and Powder rivers; Granite Creek; vicinity of Strawberry
Butte, and elsewhere. In Wallowa National Forest; noted on Big and Little Sheep
creeks at 5,950 feet.
CALIFORNIA.-Klamath and Trinity mountains, Mount Shasta region and southward
throughout Sierras. Immediate sea beaches southward to Point Arena (Mendocino
County) and inland up Smith River (northwest Del Norte County) to Gasquet, below
500 feet. West side of Sierras to head of Little Kern River and to South Fork of Kern
and main Kern River Divide; on east side, down to Cottonwood Creek. Southern cross
ranges and southward to San Jacinto Mountains; westward to the coast redwood belt,
and eastward to Warner Mountains. Northern California, at 5,000 to 7,000 feet; at
6,000 to 10,000 feet in central part; at 8,000 to 11,000 feet in southern part. Klamath
National Forest, at 5,000 to 7,000 feet; northeast of Mount Shasta, about Black Butte
and Butte Creek, at 5,000 to 5,600 feet; Goosenest Mountain and eastward to east and
northeast slopes of Glass Mountain (about 14 miles south of Tule Lake on line between