Piteka 1946 Oct. 13 El Patel, 70 km. NE Mazatlan, 5100 feet, Sinaloa Camp is located along a stream in a draw facing more or less west, about 2 miles east of Santa Lucía. We are situated on an old log trail along the stream. The main trail, the future Mazatlan-Durango "road," is about 100 feet below camp. The vegetation is apparently all second growth; it is quite dense along the streams, but on the slopes and ridges has the general aspect of a woodland. At least one species of long-needled pine, several species of oak, and madrone are predominant. The quantity of epiphytic growth on the trees together with the abundant moisture and persistent clouds about nearly peaks all suggest that the woodland here might be a marginal example of the more luxuriant and typical cloud forests to the south. Leopold states the vegetation here reminds him of similar woodland on Mt. Tancítaro in Michoacán. This morning I followed the main trail upward and more or less eastward for a half mile or less to a pass through a high ridge separating two river drainage systems, the Río Cahuaca and the Río de Buluarte, the head of which is just to the east of us over the ridge. The main trail eastward leads to Los Ocotes in the valley of the Buluarte.