Wetlands are the swamps and marshes that typical exist between land masses and water masses and may also occur where water sheds, aquifers, or other water sources are.
Wetlands mitigation banking is a concept under which a public or private entity purchases a property and restores degraded wetlands, or converts the property to a wetland, to compensate for wetland damage at one or more other sites in the same region, usually from development by other agencies, utilities, or private developers.