Our Mission
Friends of Interstate and Straight Lake Parks is a non-profit organization established to support the park’s naturalist program in its efforts to increase public awareness and appreciation of the park’s natural and cultural history.
Celebrating 125 Years!
September 20, 2025 marked a special day for Interstate Park. Individuals from around the state and region came to help us celebrate this milestone!
The day was packed with history and programs throughout the park. Park visitors, DNR staff and Wisconsin Governor Tony Evers participated in the day’s festivities. Events included nature journaling, learning to rock climb, guided hikes on the Pothole Trail with the Traprock Chapter of the Ice Age Trail, History of the Wisconsin State Park System, the history of the Silverbrook Mansion, the Civilian Conservation Corp (CCC) and so much more!
The year’s not over, and there’s still more to come. Watch for information on our Annual Meeting and Fall Festival in October!
A few photos from the 125th Celebration!
A 2025 Annual Park Sticker Makes a Great Gift!
The annual Interstate Park Wisconsin sticker goes on sale on December 2, 2024. These make an excellent gift!
A Wisconsin State Park System vehicle admission sticker is required on all motor vehicles stopping in state parks, forests and recreation areas. Admission stickers can be purchased online or at most individual properties via drive-up window service, electronic sales kiosks or self-registration stations.
Buy a sticker at the park office or ONLINE.
Some trails lead up hills to overlook sparkling lakes—others weave through the forest and follow parts of the Ice Age National Hiking Trail.
Perhaps you have watched the eagles as they soar above the dark waters. If you have been lucky, perhaps you’ve even spotted a rare cerulean warbler as it catches its next insect meal.
Both Interstate and Straight Lake State Parks have so much to offer. Here is your chance to give back. We invite you to become a Friend of Interstate and Straight Lake State Parks and join a group of people who share your love and appreciation for these two parks. We have banded together to help support the park’s education program in these ways:
- To encourage people of all ages and abilities to participate in the education program.
- To increase public awareness, knowledge, appreciation and stewardship of the park’s unique natural and cultural history, especially the forces and processes of Ice Age glaciation and how it shaped the land.
- To promote participation in nature-based outdoor recreation.
Explore our website and see how we are accomplishing these goals and find out about the many opportunities to help.
Check out our latest posts…
Friends of WI Interstate State Park and Straight Lake State Park
We are a non-profit organization established to support the park's naturalist program in its efforts to increase public awareness and appreciation of the park's natural and cultural history.
Members and Sponsors
