The Still River is a tributary to the Housatonic River. Its source lies in two small ponds in eastern New York in the hamlet of Milltown within the town of Southeast. It meanders through Sanford's Pond and Lake Kenosia in Danbury, Connecticut before it forms into a concrete aqueduct near the downtown Danbury area. It then turns north and becomes a more conventional river as it cuts through Brookfield, Connecticut and southern New Milford, Connecticut before joining with the Housatonic River.