Definition
A kettle hole is a depression in the ground formed by melting glacial ice. It's created when a block of ice left behind by a glacier melts, leaving a cavity that fills with water. Unlike a volcanic crater, a kettle hole is formed by the slow melting of ice. Kettle holes are often round and can vary in size, forming ponds or small lakes. They are evidence of past glacial activity. It's a reminder of a time when ice dominated the landscape.