The Wisconsin Geological and Natural History Survey (WGNHS) has been working to serve Wisconsin for over 100 years. Part of University of Wisconsin-Extension, we provide objective scientific information about the geology, mineral resources, and water resources of Wisconsin.
The Marengo River headwaters support trout populations. We use groundwater flow and stream temperature models to evaluate the sensitivity of stream temperature to physical characteristics like shade and width, as well as climatic changes in baseflow and air temperature. More at http://tinyurl.com/y7h5azf3#WGNHSresearch