The Boardman Charlevoix Watershed (HUC 04060105) covers approximately 1,159 square miles in northwest Michigan. The hydrology of the watershed is characterized by a mix of urban, agricultural, and forested areas, with the Boardman and Boyne Rivers serving as the primary waterways. The area experiences heavy snowfall during the winter months, with snowpack typically reaching maximum levels in February. Surface water in the watershed is abundant, with numerous lakes and streams supporting a diverse range of aquatic species. Reservoir constituents include sediment, nutrients, and organic matter, which can have a significant impact on water quality. Interesting climatic facts and trends include the increasing frequency and intensity of extreme weather events such as heavy rainfall and drought, which can have a significant impact on the watershed's hydrology and overall health.