The Minnesota County Biological Survey (MCBS) is an ongoing effort begun in 1987 by the Minnesota Department of Natural Resources (DNR) that is systematically surveying, county-by-county, the state's natural habitats. The effort identifies significant natural areas and collects and interprets data on the status, distribution, and ecology of plants, animals, and native plant communities throughout the state. Through 2009 surveys have been completed in 74 of Minnesota's 87 counties and have added nearly 17,000 new records of rare features to the DNR's information systems.
Minnesota's wetlands provide crucial habitat for waterfowl and other wildlife, assist in flood control, and help maintain water quality. However, the state has lost half the wetlands that existed before European settlement and these drained wetlands have not been mapped as part of the National Wetlands Inventory. This appropriation is enabling efforts by Ducks Unlimited to provide a complement to the National Wetlands Inventory by identifying and mapping drained wetlands that have the potential to be restored to provide their various benefits once again.