Butte Sink
Encyclopedia
Butte Sink is a depression
Sink (geography)
A geographic sink is a depression within an endorheic basin where water collects with no visible outlet. Instead of discharging, the collected water is lost due to evaporation and/or penetration...

 that is the location of the Butte Sink Wildlife Management Area
Butte Sink Wildlife Management Area
Butte Sink Wildlife Management Area has the highest concentration of waterfowl per acre in the world. Located in the Sacramento Valley of California, it includes the Butte Sink National Wildlife Refuge and conservation easements acquired on adjacent private lands...

 and Butte Sink National Wildlife Refuge
Butte Sink National Wildlife Refuge
Butte Sink National Wildlife Refuge is a National Wildlife Refuge in California. Located in Colusa, Butte, and Sutter Counties, it is wetlands managed as part of the Sacramento National Wildlife Refuge Complex.-References:*...

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