Patagonia Lake is a man-made reservoir in Santa Cruz County, Arizona, United States, located southwest of the town of Patagonia, Arizona and northeast of Nogales. The lake was created by damming Sonoita Creek, and is a popular area for boating and sport fishing. Facilities are maintained by Arizona State Parks as part of Patagonia Lake State Park.

Fish species

Reproducing fish species located in Patagonia Lake are largemouth bass, black crappie, bluegill, green sunfish, flathead catfish, threadfin shad, redear sunfish, channel catfish, and American bullfrogs. Rainbow trout are stocked every three weeks from October to March.