Lake Granbury is a man-made reservoir located on the Brazos River in north central Texas, near Granbury. It was created in 1969 for flood control, water supply and recreation purposes. The lake has a capacity of over 137,000 acre-feet and a surface area of 8,310 acres. The hydrology of the lake is primarily fed by the Brazos River and Pecan Bayou. The lake provides water for agricultural use, including the irrigation of crops such as cotton and corn. It is also a popular recreational spot for fishing, boating, and swimming. The lake's water level can fluctuate significantly due to the lack of snowpack providers in the area. The lake has also experienced issues with algae blooms in recent years.