Largest Reservoirs in Northern California

Name	County(s)	Volume(acre-feet)	Outflow	Dam
Lake Tahoe	Placer, El Dorado, Douglas (NV), Washoe (NV)	122,160,280	Truckee River
Shasta Lake	Shasta	4,552,000	Sacramento River	Shasta Dam
Lake Oroville	Butte	3,537,577	Feather River	Oroville Dam
Trinity Lake	Trinity	2,448,000	Trinity River	Trinity Dam
Lake Berryessa	Napa	1,602,000	Putah Creek	Monticello Dam
Lake Almanor	Plumas	1,308,000	North Feather River	Canyon Dam
Folsom Lake	Sacramento, El Dorado, Placer	1,120,200	American River	Folsom Dam
New Bullards Bar Reservoir	Yuba	996,103	North Yuba River	New Bullards Bar Dam
Clear Lake	Lake	313,000	Cache Creek	Cache Creek Dam
Camanche Reservoir	San Joaquin, Amador, Calaveras	431,000	Mokelumne River	Camanche Dam

Links:
Sacramento River Basin | Sacramento River Watershed Program
List of largest reservoirs of California - Wikipedia
Feather River Oroville to Yuba city
Sacramento River Watershed Program
Greater Tahoe Area
  Sacramento River Basin Map | sacriver.org
California WaterBlog | UC Davis
Recreational Rivers of Northern and Central California | San Diego State
N. California Precipitation