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Concept
Yulupa Creek
Résumé
Yulupa Creek is a southeast-flowing perennial stream that rises on the southeastern flanks of the northern Sonoma Mountains in Sonoma County, California, United States. This creek, which drains the eastern slopes of Bennett Mountain, is tributary to Sonoma Creek, which in turn discharges to San Pablo Bay. Yulupa Avenue in Santa Rosa is presumably named after this creek.
Yulupa Creek rises in the Sonoma Mountains, on the southwestern edge of Annadel State Park near Bennett Ridge Road. It descends initially to the southeast. After about it meets Bennett Valley Road, which it follows eastward to Warm Springs Road, where it discharges into Sonoma Creek.
The Yulupa Creek watershed comprises an area of approximately five square miles, and is considered a viable steelhead, Oncorhynchus mykiss, spawning habitat; stream surveys conducted from 1966 to 1986 indicated significant, but declining populations of anadromous fish. NOAA fisheries has designated the Yulupa Creek watershed as "Critical Habitat" for Oncorhychus mykiss as well as O. tshawytscha (Chinook Salmon) as of 2004.
Land use in this watershed consists of Annadel State Park usage and very low density rural single family residential development, much of which is upmarket housing stock. From the higher headwater elevations, there are expansive views of Hood Mountain and the southern Mayacamas Mountains can be seen to the north; Sonoma Valley and distantly San Francisco to the south; and Sonoma Mountain to the southwest. The area designation of most of this watershed is Kenwood, California, an unincorporated area known for its viticulture, although only a small fraction of the Yulupa Creek watershed is planted to grapes.
In addition to known spawning area for O. mykiss, Yulupa Creek has been designated as a high quality riparian zone and an identified habitat of freshwater shrimp. Moreover, the upland watershed area is a California oak woodland, much of which is a relatively undisturbed ecosystem with considerable biodiversity.
Source officielle
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