Upper Green Bay Basin
About the Basin
The Upper Green Bay Basin consists of 18 watersheds in northeastern Wisconsin, including all of Florence, Marinette and Oconto counties and a major portion of Forest County, and smaller regions of Brown, Langlade, Menominee, Outagamie, Shawano, and Vilas counties.
The basin consists of all waters draining to Green Bay between the city of Green Bay and the Wisconsin-Michigan border. Major river systems include the Menominee, Oconto, and Peshtigo rivers in the north, and the Pensaukee, Suamico and Little Suamico rivers further to the south. The Upper Green Bay GMU is a subset of the larger Green Bay hydrologic basin and includes all or portions of 16 watersheds entirely or partially within the Upper Green Bay Basin.
See the Surface Water Data Viewer to view Trout Stream Locations.
A number of waters in this basin are listed as impaired includingGreen Bay (Menominee Area of Concern), Oconto River, Peshtigo River, and a number of individual lakes due to atmposheric deposition of mercury.
Search impaired water details
Watershed, Water Details
Click the links below to find water resource information for specific watersheds and their waters.
The Middle Inlet and Lake Noquebay Watershed Plan has been updated in this basin. These documents are updates to the Upper Green Bay Basin (see below). Contact Richard Stoll, Watershed Supervisor for information.
Middle Inlet and Lake Noquebay Maps
Contact Richard Stoll, Watershed Supervisor, for more information.
For more on the basin, contact Northern Region DNR Staff.