Putah Creek (Patwin: Liwaito) is a major stream in Northern California, a tributary of the Yolo Bypass, and ultimately, the Sacramento River. The  creek has its headwaters in the Mayacamas Mountains, a part of the Coast Range, and flows east through two dams. First, Monticello Dam forms Lake Berryessa, below which Putah Creek forms the border of Yolo and Solano Counties, and then flows to the Putah Diversion Dam and Lake Solano.
Putah Creek (Patwin: Liwaito) is a significant river in Northern California, an arm of the Yolo Bypass, and ultimately, the Sacramento River. The creek originates from the Mayacamas Mountains, part of the Coast Range, and flows east past two dams. Initially, Monticello Dam creates Lake Berryessa, below which Putah Creek delineates the border between Yolo and Solano Counties, before reaching the Putah Diversion Dam and Lake Solano.