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Transcription
Cogswell
1950
"Journal"
2
American River Canyon road (cont.)
VISITS: July 11, July 28, Aug. 20 (includes long
trip all way to Placer Co. Big Trees (q.v.), Aug.22.
Angela Lake, 7250 ft., 1/2 mi. N Donner Pass, Nevada Co.,
Calif. (= Southern Pacific Lake no. 1 of local resi-
dents, since Angela plus small lake just S of it
as shown on topo map are now confluent due to dam
placed below latter).
forest of
VEG. TYPES: sparse, patchy, lodgepole & Jeffrey
pines, with red firs in most humid situations also,
and scattered Sierra juniper on rockier ones; much
low shrubbery in the wide spaces between trees, is
mostly Quercus vaccinifolium, Arctostaphylos neva-
densis, & Ceanothus cordulatus, with Cassiope quite
abundant near the several small lakes in the area;
the ridge top (Sierran crest) here consists of many
huge rounded (glaciated) granite outcroppings, with
gravelly hollows between & the vegetation noted above.
VISITS: July 13 (but see also Donner Pass, N of)
Bear Valley, 4570-4600 ft., in Nevada & Placer Cos.
along State highway 20, Calif. (T 17 N, in Secs. 25
of R 11 E and Sec. 30 of R 13 E).
VEG. TYPES: dense forest (Pinus ponderosa, Libo-
cedrus decurrens, Quercus kelloggii, & few Pseudo-
tsuga taxifolia); forest border (with many young
pines or firs & scattered very large Quercus kelloggii)
open meadow (grasses to 3 ft. high, plus various
forbs in drier or more heavily grazed portions) with
columns of the "forest border" types about several
outcrops (residual boulders) of granite; a few large
Acer macrophyllum & much more abundant shrub under-
s tory in forest bordering meadow on SE.
VISITS: June 17, 23; July 7, 21; Aug. 4, 18.
Big Bend Camp Ground, 5750 - 5900 (latter on slope N
of camp ground), along S. Fork Yuba River, in Sec.28,
T 17 N, R 13 E, Placer Co., Calif. (approx. 11 mi.
W Donner Pass).
VEG. TYPES: a few acres of tall dense forest,
the trees being of many ages (= climax ?)(Pinus pond-
erosa jeffreyi, Abies concolor, Libocedrus decurrens,
Pinus murrayana, few Abies magnifica & Quercus kel-
loggii, the latter among shrubs under power line clear-
ing); interstitial understory near river of Quercus
vaccinifolium, Arctostaphylos patula, Ceanothus cor-
dulatus, Populus tremuloides; denser, nearly chapar-
ral shrub growth under clearing along S-facing slope
below several parallel power lines (Prunus emarginata,
Spiraea, Ceanothus velutinus, Castanopsis sempervirens
in addition to above mentioned shrubs