The Tri-Cities of Virginia (also known as the Tri-City area or the Appomattox Basin) is an area in the Greater Richmond Region which includes the three independent cities of Petersburg, Colonial Heights, and Hopewell and portions of the adjoining counties of Chesterfield, Dinwiddie, and Prince George in south-central Virginia. Other unincorporated communities located in the Tri-Cities area include Ettrick, Fort Lee, and City Point, the latter formerly a historic incorporated town which was annexed to become part of the City of Hopewell.