Have a look at a map of the Islais Creek Watershed, the largest in San Francisco, that interconnects at least 11 communities in South East and South West San Francisco:  Noe Valley, Mission, Bernal Heights, Potrero Hill, Bayview, Portola, Crocker-Amazon, Excelsior, OMI, Sunnyside, Glen Park. The Islais Creek provides multiple opportunities for ecological community and economic development, education including green skills job training, and creating a new, expressive and practical, narrative landscape.