Young Brunette Girl Undresses Her Pink Dress At The House With A Pond

Some regions of the United States define a pond as a body of water with a surface area of less than 10 acres (40,000 m²).
Regional differences include the use of the word pond in New England, and Maine in particular, for relatively large water bodies. For example a Great Pond in Maine is considered to be at least 10 acres (41,240 m²) in area.
In areas which were covered by glaciers in the past, some ponds were created when the glaciers retreated. These ponds are known as kettle ponds. Walden Pond in Concord, Massachusetts, is a well known example. Kettle ponds are usually quite deep and clean because they are fed by underground aquifers rather than surface streams.
The term is also used for temporary accumulation of water from surface runoff (ponded water).