November Visit (11/30/2016)

In November, on a cool but not cold day, I hiked to the top of Blue Ridge.  Looking out at Lake Berryessa, it was easy to see part of the area burned by the Cold Fire last summer.

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On the way up the trail, I looked for mushrooms enjoying the damp left by rains earlier in the month, and observed regrowth of mountain mahogany (Cercocarpus betuloides), blue oaks (Quercus douglasii), and chamise (Adenostoma fasciculatum).  The leaves of yerba santa (Eriodictyon californicum) along the trail were losing their waxy coating.  The waxy coating, presumably beneficial in retaining water during dry months, is resinous and highly flammable.  Yerba santa seeds may require fire to germinate and can also resprout from rhizomes following fire.

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Hillsides stripped of their erosion-controlling vegetation by the fire have been shored up with erosion matting installed by Tuleyome and Friends of Stebbins Cold Canyon Reserve.

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Looking across Cold Canyon I was struck by the “rivers” of dead tree branches running down the canyons of Pleasants Ridge.  They made a ghostly grey against the greens of new growth and the hills still mostly yellow from the summer.

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A few mid-action photos:

Spawning Chinook in Putah Creek

Anadromous fish do not make their way into Cold Creek, but Cold Creek is a tributary to Putah Creek, which does have salmon and steelhead.  Water quality in Cold Creek (including impacts from fire) has a direct impact on water in Putah Creek and on the organisms that rely on Putah Creek.  Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss) return to Putah Creek to spawn after spending several years in the ocean, and are dependent on cool, clear water free of contaminants for their survival.

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In November, I watched Chinook salmon traveling up Putah Creek in downtown Winters, just under the old railroad bridge.  I made some sketches onsite:

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And then developed a more detailed depiction of the scene at home:

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