 The reservoir elevation is listed as 1,765 feet on topographic maps, but Georgia Power considers the lake full at an elevation of 1,752.5 feet.Seed Lake was formed in 1927 with the completion of the Nacoochee Dam, a gravity concrete and masonry dam that is 75 feet high and spans 490 feet.The associated Nacoochee Hydroelectric Plant has a capacity of 4,800 kilowatts.