Goat Rock Lake is a 940-acre (3.8 km2) reservoir on the Chattahoochee River, which lies directly south of Bartlett's Ferry Dam (Lake Harding) and north of Lake Oliver.

The lake is created by the Goat Rock Dam and Generating Plant.

Reportedly, construction workers saw goats jumping onto rocks in the river.

The reservoir is extremely riverine and little more than a holding lake for hydroelectric generation for Georgia Power.

Goat Rock has almost no recreational activity, but it is well-known among locals for fishing.