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What is a Kettle Lake?
Onondaga and Cortland Counties, are unique and beautiful regions in central New York. One of the defining characteristics is the presence of several kettle-hole or kettle lakes. According to the United States Geological Survey (USGS), the area was formed by the advancing and retreating of glacial ice during the last glacial period in North America.  To the west of us, the same glacial process formed the Finger Lakes. The process here, however, caused smaller holes to be formed when huge chunks of ice broke off the glacier. These holes, or “kettles” were then buried by till[1] as the glacier receded. When these ice chunks melted, the depression remained.  
    Each kettle lake has its own unique properties. Some have natural or created outlets, while others are landlocked. All of these lakes are, however, connected to the surficial aquifer. A surficial aquifer is generally defined by the USGS, as an “unconfined, shallow aquifer system, recharged by rainfall and leakage from surface water bodies.”