Middle Subbasin Overview

The Middle Subbasin includes the complete drainage area of the mainstem Ten Mile River and the Middle Fork of Ten Mile River. This subbasin is contained within Mendocino County (Figure 1). The Coastal margin of this subbasin is characterized by low-lying topography of gentile relief typical of estuary and coastal shorelines. The interior of the subbasin possesses a forested landscape of rugged, steep, sharp-crested ridges and narrow stream valleys. The northeastern margin of the subbasin is sparsely forested with mixed hardwood and conifers interspersed with grasslands and meadows. The topography of the northeastern margin of the basin is noticeably subdued compared with the interior. Stream elevations range from sea-level at its confluence with the Pacific Ocean to approximately 2,400 feet in the headwaters of the tributaries (Sherwood Peak). The subbasin encompasses about 42 square miles, occupying 35 percent of the total assessment basin area.

There are no towns within this subbasin. The Middle subbasin is mostly held by timber companies who manage it for timber production and in scattered private parcels commonly less than 40 acres, by ranchers and residences. Fish surveys of the streams in this basin have identified the presence of Coho, Steelhead, and Chinook salmon.

The climate of this subbasin is dominated by the coastal marine layer giving this area mild, foggy summers and wet winters.

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Middle Fork Ten Mile River