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

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FOREST TREES OF THE PACIFIC SLOPE.
cabinet work. As a forest tree, it is only of secondary importance, on account
of its rarity and the fact that larger and more generally useful timber trees
grow abundantly in the same range. Through its remarkable tolerance of
dense shade it can assist in forming low protective cover in moist coves and
canyons and at the heads of streams.
LONGEVITY.-Age limits of this yew have not been fully investigated. Growth
in height and diameter are very slow, especially under deep shade, where, however,
it maintains itself most persistently, indicating that it is long-lived.
Few representative sizes have been studied. Trees 6 inches in diameter are
from 75 to 90 years, while those from 12 to 20 inches in diameter are from 140
to 245 years old. The largest trees are believed to be about 350 or 375 years old.
RANGE.
Pacific coast region south from the southern tip of Alaska (Annette and Gravina
Islands) and east to Selkirk Mountains; through western Oregon and Washington to
California (coast ranges south to southern Lake County and western slopes of Sierra
Nevada to Tulare County) ; mountains of eastern Washington and Oregon and Montana
(east to western slope of Continental Divide, south at least to south end Bitterroot
Mountains, Idaho, and Swan Lake, Montana).
ALASKA.-Noted only on Annette and Gravina islands at southeastern end, but probably
also on neighboring Islands and mainland.
BRITISH CoLUNMBIA.-Islands and sea side of Coast Range, extending some distance
up Fraser River and reappearing farther east in Selkirk range. Queen Charlotte
islands, confined to borders of inlets; noted on Cumshewa Inlet from Clew to head of
West Arm, on shores of Prevost Island and south end of Moresby island, Skidegate
Inlet, and near Massett. On mainland noted on lower Skeena River, on Fraser River
up to Chapmans Bar near Suspension Bridge, and Coquihalla River up 20 miles above
Hope. Vancouver Island common near coast, noted from sea level to 900 feet on
southwest end in Renfrew district and near Victoria. Farther east on both sides of
Selkirk Range north to Beaver Creek at 3,500 to 4,000 feet; noted on Kootenai Lake
and west of It between Sproats Landing and Nelson.
WASHINGTON.-Douglas fir forests west of Cascades and moister parts of yellow pine
forests east of Cascades, extending higher on both sides of the range into western
white pine forest (at sea level to 5.000 feet). Eastward through mountains of northern
and eastern parts of State. (West) Washington National Forest generally below 3,000
feet. (East) Washington National Forest only detected on Stehekin River, in Horseshoe
Basin, at Nason City (Chelan County), and in some mountain passes at 3,300
to 5,000 feet. Yakima division Washington National Forest up to 6,000 feet, noted In
Kittitas County. Mount Rainier National Forest generally below 4,200 feet; locally
noted on upper Nisqually River, Mount Rainier between Longmire Springs and Paradise
Park, and on a summit 8 miles southeast of Mount Rainier at 6,000 feet. Olympic
Peninsula common; noted at Arbutus Point, in Queniult Indian Reservation and on
Admiralty Inlet at Port Townsend and at Port Ludlow. Blue Mountains and infrequently
along streams near Pullman (Whitman County).
OREGON.-West side of Cascades and Blue Mountains up to 6,000 feet. Not detected
in Coast Range. Cascade (North) National Forest, west side below 2,100 feet in Douglas
fir forest, but occasionally reaching 5,900 feet; noted locally at Portland, Clackamas
River Canyon, between Portland and Mount Hood, and south of Mount Hood on Camas
Prairie. Cascade (South) National Forest west side of Cascades and north side of
Siskiyous; locally noted near Sawtooth Mountain (T. 25 S., R. 6 E.) above 6,000 feet,
road from Rogue River to Crater Lake at 3,500 feet, headwaters of Rogue River In
Cascades and of Bear Creek in Siskiyous, especially T. 38 S., R. 4 E.
CALIFORNIA.-Northern coast ranges from western Siskiyou and Humboldt counties
southward to Mendocino, Mendocino County, and Mount St. Helena, Lake County. Not
detected in Del Norte County and in general not extending west quite to coast; east
to Marble Mountain and upper McCloud River (Sisklyou County) ; occurs in ravines
from a little above sea level to 6,000 feet. Siskiyou County, noted in Klamath National
Forest, on west slope Marble Mountain on Russian Creek, and on east slope Salmon
River Mountains at 1,800 to 3,200 feet. Humboldt County, noted on west slope Trinity
Mountains above Hoopa Valley as low as 4,000 feet, west of Hoopa Valley on trail to
Redwood Creek, between Redwood Creek and Blue Lake, canyon South Fork Van Dusen
River, Little Van Dusen, and a few miles from Briceland. Mendocino County, seaward
side of Coast Range in redwood forest for 10 miles east of Westport and at a point