We hiked the Bear Creek Trail (EBMUD) along the south shore of Briones Reservoir. There was more evidence of the season in the colors, dried vegetation and angle of the light.
Madrone berries fallen among leaves of the black oak
There are, indeed, goldfish on Mt. Diablo (still).
We hiked the same trails on 10/16 /2013 as we did on 10/12/2011 if you would like to compare the images: