Onondaga Lake Watershed Map
The Onondaga Lake watershed covers 285 square miles in Onondaga and Cortland counties in central New York. For more information about Onondaga Lake, visit DEC's Onondaga Lake webpage.

The Onondaga Lake watershed covers 285 square miles in Onondaga and Cortland counties in central New York. For more information about Onondaga Lake, visit DEC's Onondaga Lake webpage.