Cogswell 1949 Journal 111 Sep. 5 Willow Creek, 400 ft. Humboldt Co., to Weaverville, Hayfork and Red Mtn., 14 mi S Hayfork, 5200 ft. Trinity Co., Calif. We left our loon creek camp about 7:40 a.m. and drove the route indi- cated above. Most of the way from Willowcreek toward Weaverville the highway (US 299) college follows the Trinity River, which trends NW-SE then closer to E-W. The mixed forest of douglas fir - black oak - madrone which is pres- ent near Salter, 5 mi from Willowcreek, con- tinues for several miles. It is replaced by apparent preclimax oak woodland containing wedbud, burrion oak, manzanita, etc., on the dry river terraces and extreme lower rocky ridges and by postclimax Douglas fir forest (probably with tan oak & madrone in small amounts) on the protected N. facing slopes. After several miles there are occasional Digga Pines (Pinus sabiniana) on the drier S-facing slopes and a scattering of yellow pines (P. ponderosa) on the valley flats. In the vicinity of Big Bar the general cover of the S-facing slopes is Diggar Pine & Oak (black + live oak - Q. chrysolepis?) in a woodland formation, while the N-facing slopes are a mixture of Douglas Fir, & Black Oak with a little madrone & other species. Yellow Pine is more prevalent in the valley & also on the higher ridges visible here. By about 6 mi E. of Big Bar the Douglas fir has