Lake Austin

Lake Austin
Seen from Mount Bonnell
Lake Austin Location of Lake Austin in Texas
Location	Austin, Texas
Coordinates	30°17.66′N 97°47.18′W / 30.29433°N 97.78633°W / 30.29433; -97.78633
Lake type	Hydroelectric reservoir
Part of	The Texas Highland Lakes
Primary inflows	Colorado River (from Lake Travis)
Primary outflows	Colorado River (into Lady Bird Lake)
Basin countries	United States
Managing agency	Lower Colorado River Authority
Built	1939 (1939)
Surface area	1,599 acres (647 ha)
Max. depth	75 ft (23 m)
Surface elevation	492 ft (150 m) above sea level

Lake Austin, formerly Lake McDonald, is a water reservoir on the Colorado River in Austin, Texas. The reservoir was formed in 1939 by the construction of Tom Miller Dam by the Lower Colorado River Authority. Lake Austin is one of the seven Highland Lakes created by the LCRA, and is used for flood control, electrical power generation, and recreation.