Why You Should Visit
Lulu Lake glitters amidst the rich marshes of the upper Mukwonago River watershed. When viewed through the lens of species richness and water quality, this 95-acre kettle lake (a lake created by the glaciers) and its watershed comprise one of Wisconsin's highest quality natural areas.
Southeastern Wisconsin: 35 minutes southwest of Milwaukee in Walworth and Waukesha counties
For more information about on the preserve itself contact the Conservancy's local office:
N8740 Pickeral Lake Rd.
East Troy WI 53120-1836
Tel: (262) 642-7276
Why the Conservancy Selected This Site
Because of the high-quality stream surrounded by wetlands and oak openings, which provides habitat for rare fish, mussels and plants.
An oak opening is dominated by clustered, open-grown bur oaks and white oaks, and shagbark hickory. The ground is covered with prairie and forest plants.
Before agricultural settlement there were more than 5.5 million acres of oak openings in Wisconsin. Today only about 500 acres survive. Between 50-80 of these acres are found around Lulu Lake. The Conservancy is using fire and manual removal of non-native plants to restore and maintain them.
Scientific researchers interested in several topics — oak openings; the hydrology of sedge meadows and fens; and rare species of fish, amphibians, reptiles and butterflies — have used the preserve as an outdoor laboratory.
What the Conservancy Has Done/Is Doing
The Conservancy made its first acquisition at Lulu Lake in 1986 and, as of today, owns 553 acres. Another 419 acres are being protected by private individuals and the Wisconsin Department of Natural Resources State Natural Areas Program.
We have expanded our work in this area to include the entire Mukwonago River Watershed. We have an office and staff in the East Troy area and are working cooperatively with many different public and private partners to accomplish the following:
- Protect the water quality of and natural areas within the Mukwonago River Watershed.
- Manage our preserves to maintain rare natural communities and provide habitat for fish, mussels, amphibians and reptiles. This includes removing Eurasian water-milfoil and other aquatic invasive species.
- Work with individuals and organizations concerned with the health of the watershed to help balance watershed protection with human needs and economic health.