Cogswell 1950 "Journal" 4 Chubb Lake, 5250 ft., N of State Highway 20 about 1 mi. E Camp Spaulding, Nevada Co., Calif. -- in middle of Sec. 22, R 12 E, T 17 N. VEG. TYPES: (S side of Lake)-- patches of forest (Abies concolor, Pinus ponderosa and/or jeffreyi, Libocedrus decurrens, Quercus kelloggii) with mixed chaparral on old cleared or burned slopes (Prunus emarginata, Ceanothus cordulatus & integerrimus, Arctostaphylos patula, Quercus kelloggii). Denser forest N & NE of lake not visited. VISIT: June 17 (scouting trip, not repeated, the lake not being suitable for Transition zone forest + meadow) Cisco Grove, 5650 ft., on S Fork Yuba River, Placer Co., Calif. -- in Sec. 29, R 13 E, T 17 N; about 12 mi. W Donner Pass. VEG. TYPES: riparian woodland (tall Populus trich- ocarpa, shorter Populus tremuloides (few), Salix sp.; understory of Salix sp., Cornus californicus, Rosa sp. & stream-drifted debris. The understory of the wood- land has been largely cleared out on S side of stream, where grasses & forbs alternate with sand or gravel substrate. Coniferous forest (Pinus murrayana, Pinus jeffreyi, Juniperus occidentalis, Abies magnifica) covers adjacent slopes and some of the valley flat as well, mixing with cottonwoods just N of river. The stream is slow-flowing thru most of the 1/4 mi. we usually covered; it meanders noticeably, with debris piled up at intervals (see Melospiza melodia). This is the highest altitude riparian woodland west of Donner Pass which is not too much mixed with coni- fers, although the cottonwoods occur on up to Kingvale, 6060 ft., about 6½ mi. W of the pass. VISITS: June 24; July 5, 8, 22 (twice); Aug. 5 (twice), Aug. 16. Cold Creek Road, 5850-7800 ft., W side Carson Range, eastern (extreme) Eldorado Co., Calif. -- starting from "Sierra House" (now abandoned) as shown on 1893 USGS Markleville quad. map & running easterly to High Meadow; the creek it parallels is not the Cold Creek la- belled such on this map, but a longer one just S of it. VEG. TYPES: coniferous forest (Pinus jeffreyi, Abies concolor, & much shrub understory at lower eleva- tions; Abies concolor and/or magnifica, Pinus jeffre- yi, Pinus murrayana with more scattered shrubs at med- um elevations; Pinus murrayana, Pinus jeffreyi, Abies magnifica at higher elevations, with very open structu-re & low sagebrush or scattered chaparral patches) Aspen groves along stream and in seepage areas. VISITS: July 9, 23.