At its greatest size, the lake was approximately  deep, and  in size (nearly two-thirds the size of Lake Erie). When the lake finally overflowed, it created new drainage channels and rivers flowing south, in the opposite direction of the Teays River.
The lake's greatest extent was approximately  deep and roughly two-thirds the size of Lake Erie. When it overflowed, it generated new drainage channels and rivers flowing south, opposite to the Teays River.