Description - *This information was provided by the Illinois Department of Natural Resources*
Tri-County State Park encompasses 501 acres of open space that extend into DuPage, Kane and Cook counties. Although the land and building are owned by the Illinois Department of Natural Resources in trust for all Illinois citizens, the park and visitor center are managed by the Forest Preserve District of DuPage County.
History- Native Americans were the first humans to inhabit the area that is now Tri-County State Park. The French were the first Europeans to explore it. Farmers, factory and office workers, along with their families, soon followed, prospering but changing the landscape dramatically.
The park was once mainly wet, tallgrass prairie, rich with flowers and grasses and home to creatures from insects to bison. The Forest Preserve District of DuPage County's goal is to restore as fully as possible portions of natural ecosystems, including prairie, woodland and wetland. It's an ongoing effort, a work in progress. Visitors are invited to come back often and watch the restoration take shape.
- Visitor Center- The Tri-County State Park Visitor Center provides a special window into the park's restoration story. An exhibit area containing photomurals and interactive displays highlights the prairie and the need to protect and restore this valuable ecosystem. A small theater features videos that tell the story of that land - from the glaciers that sculpted it to the settlers, farmers and developers who tamed it, to the individuals who now work to restore it. For more information, call the visitor center at (847) 429-4670.
Recreation - Trails- More than five miles of trails wind through Tri-County State Park. These multipurpose trails meander through some of the park's most scenic areas and are ways for hikers, horseback riders, cyclists and cross-country skiers to see and enjoy the park.
Picnicking- Visitors can take advantage of the picnicking opportunities available at Tri-County State Park, such as a reservable 50-person-capacity picnic shelter with a large grill. Ground fires are prohibited, but visitors may bring their own grills and dispose of coals in the hot-coal containers provided. For information on reserving the shelter, call (630) 933-7248.
Climate - Illinois experiences four distinct seasons with varying weather throughout the year. Winter can be very cold. The highest humidity of the year occurs during this season averaging 70 to 75 percent. Average low temperatures in January dip to 20 degrees F with highs near 35 degrees F. Spring temperatures are mild with humidity below 70 percent. Temperatures during this season average between 32 and 50 degrees F. Summer is usually hot and humid in this Midwest state. Low temperatures remain in the low sixties with high temperatures near 90 degrees F. The highest rainfall of the year occurs during the summer months. Fall is an excellent time to visit the state with low humidity and rainfall and moderate temperatures.
Main Entrance is on the north side of Stearns Road west of Powis Road.