Consultants
- Webpage
Freshwater mussels of the Mississippi River
Currently there are 39 species of mussels (commonly called clams) found along the Wisconsin portion of the Mississippi River. Their distribution varies between localized and rare populations to those that are more widely found such as the giant…
- Webpage
Mississippi River fish
The Upper Mississippi River is home to over 119 species of fish -- more species than are found in any of Wisconsin’s inland lakes. Favorite sport fish include walleye, sauger, largemouth bass, smallmouth bass, channel catfish, northern pike,…
- Webpage
Mississippi River - Frequently asked questions
Hunting Where is it legal to hunt with a Wisconsin license? You may hunt with a Wisconsin hunting license only in open hunting areas within Wisconsin. The commercial navigation channel, marked with large red or black buoys, is the state line in…
- Webpage
Milwaukee River Basin
The rivers, lakes, groundwater and lands in the Milwaukee River basin sustain a wide range of plant and animal life. From the seemingly untouched areas within the Northern Unit of the Kettle Moraine State Forest to the areas near cities challenged…
- Webpage
Lower Wisconsin River Basin
The Lower Wisconsin River basin drains approximately 4,940 square miles of south-central and southwestern Wisconsin. The basin includes the Wisconsin River from the Castle Rock Flowage dam to its confluence with the Mississippi River near Prairie du…
- Webpage
Lower Rock River surface water quality report
The Lower Rock River in south-central Wisconsin extends 48 miles from Fort Atkinson to the Illinois-Wisconsin border at Beloit. A large, low velocity, warmwater river, it is classified as warmwater sport fishery. The main stem only partially…
- Webpage
Lower Rock River groundwater
Groundwater is an important resource of the Lower Rock River basin. It is the source of almost all water used for domestic, agricultural, commercial and industrial purposes in the basin. All of the basin's residents rely on groundwater for potable…
- Webpage
Lower Rock River geologic and geographic setting
The Lower Rock River basin includes the portion of the Rock River below Fort Atkinson and its tributaries. The Bark River originates in Washington County and traverses the southern Kettle Moraine region before emptying into the Rock at Fort Atkinson…
- Webpage
Groundwater contaminants
Wisconsin DNR maintains a groundwater database. Sampling is conducted for the purpose of problem assessment, at-risk monitoring and some regulatory monitoring. Many of the sampling events are focused on problem areas. The Groundwater Retrieval…
- Webpage
Lower Rock River basinwide issues
For more information about stormwater management, connect to the Center for Watershed Protection [exit DNR].