In the 1890s, Islais Creek was the largest body of water in San Francisco, providing recreation, transport and drinking water to the city’s residents. Today, Glen Canyon and the Bayview district’s Islais Creek Channel are the only visible remnants.
Wild holly-leaf cherry trees once grew along Islais Creek, providing a staple food for the Native Americans who lived here. Isles is derived from the Salinan Indian word for those trees, "slay".
Read more at the New York Times