 The main water sources for the project are the Middle Yuba River, and Canyon Creek (a tributary of the South Yuba River).Jackson Meadows Dam stores water from the Middle Yuba, which is diverted southward through the Milton-Bowman Diversion Conduit into Bowman Lake, an impoundment of Canyon Creek.In addition to Jackson Meadows and Bowman reservoirs, the Yuba–Bear project derives water from fourteen smaller high elevation Sierra lakes, which have been dammed to increase their size.