Editing Sonoma County, California (section)

====Laguna de Santa Rosa====
The Laguna de Santa Rosa is the largest tributary of the Russian River.<ref>{{cite web |url=http://www.lagunafoundation.org/about_ecology.htm |archive-url=https://web.archive.org/web/20110722010816/http://www.lagunafoundation.org/about_ecology.htm |url-status=dead |archive-date=July 22, 2011 |title=The Ecology of the Laguna de Santa Rosa |website=lagunafoundation.org |publisher=Laguna de Santa Rosa Foundation |access-date=July 17, 2014 }}</ref> It is {{convert|14|mi|km}} long, running north from Cotati to the Russian River near Forestville. Its flood plain is more than {{convert|7,500|acre|km2}}. It drains a {{convert|254|sqmi|km2|adj=on}} watershed, including most of the Santa Rosa Plain.

The Laguna de Santa Rosa Foundation says:<ref>{{cite web|url=http://www.lagunadesantarosa.org/ecology.html |website=lagunadesantarosa.org |title=Ecology |publisher=Laguna de Santa Rosa Foundation |url-status=dead |archive-url=https://web.archive.org/web/20070206161535/http://www.lagunadesantarosa.org/ecology.html |archive-date=February 6, 2007 }}</ref>

<blockquote>The Laguna de Santa Rosa is Sonoma County's richest area of wildlife habitat, and the most biologically diverse region of Sonoma County (itself the second-most biologically diverse county in California)... It is a unique ecological system covering more than {{convert|30,000|acre|km2}} and {{sic|comprised|hide=y|of}} a mosaic of creeks, open water, perennial marshes, seasonal wetlands, riparian forests, oak woodlands, and grasslands... As the receiving water of a watershed where most of the county's human population lives, it is a landscape feature of critical importance to Sonoma County's water quality, flood control, and biodiversity.</blockquote>

The Laguna's largest tributary is [[Santa Rosa Creek]], which runs through Santa Rosa. Its major tributaries are [[Brush Creek (Sonoma County, California)|Brush Creek]], Mark West Creek, [[Matanzas Creek]], [[Spring Creek (Sonoma County, California)|Spring Creek]], and [[Piner Creek]]. Santa Rosa Creek was shown to be polluted in Sonoma county first flush results.<ref>{{Cite web|url=https://www.govtech.com/em/disaster/Damage-to-Creeks-Water-Supply-Analyzed-After-Sonoma-County-Fires.html|title=Damage to Creeks, Water Supply Analyzed After Sonoma County Fires|date=2017|website=www.govtech.com|language=en|access-date=March 18, 2019}}</ref>