I live on a named creek in the S.F. Bay Area, and I've recently re-discovered what a natural wonder it is. It is mostly original creek for its entire length. I

I live on a named creek in the S.F. Bay Area, and I've recently re-discovered what a natural wonder it is. It is mostly original creek for its entire length. I discovered recently a tributary that at one time ran through my property was re-routed (I suspect in the 1960s) to empty into the creek 400 yards downstream. This probably results in less flooding on my property than historically otherwise would occur. It used to be a steelhead creek, but in the 1950s the Army Corps of Engineers did major flood control alterations to the major creek it flows into, making it impossible for fish to swim upstream. New environmental laws requiring runoff to percolate through the soil and stemming construction erosion help the water quality. I hope someday the flood control gets rebuilt to be migrating fish friendly.