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.

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Angle Rock
Deer at Straight Lake Park
Glowing Sunset over the St. Croix River
Michigan Lily

Invitation to Explore

Foraging through steep-walled bluffs, there are deep valleys rising to tree-covered heights, serene forests, lush meadows, and teeming wetlands.

Maybe you have visited Wisconsin’s Interstate Park. You have enjoyed and appreciated all that Wisconsin’s oldest state park has to offer.

You have hiked its scenic trails, climbed its massive boulders, and peered into a mysterious pothole. You have navigated the wild and scenic St. Croix River by boat or canoe or explored its shoreline and camped near its banks.

You have known the serenity thrills, wonder, and deep satisfaction that experiencing this unique state park affords.

Perhaps you have also visited Wisconsin’s newest state park, Straight Lake Park.Β  It lies nestled deep in the woods, just 20 minutes north of Interstate Park in Luck, Wisconsin.

Kayak on St. Croix River

Some trails lead up hills to overlook sparkling lakesβ€”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.Β  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.Β  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…

Historic CCC Building “Horizon Rock Shelter” in need of HELP from you!

If you've spent much time at Wisconsin's Interstate State Park, you've probably found your way to a treasured shelter on the Horizon Rock Trail. You may have wondered, "what happened, how did this burn down?" From the rock outcropping, you can see the horizon and...

2024 Interstate State Park Candlelight Hike – Saturday February 10th, 5-8pm

  Experience the serenity of the nighttime forest in the heart of the St Croix Valley by spending some time in the outdoors with us and your loved ones. WI Interstate State Park Candlelight Hike is a yearly tradition of honoring the long, dark winter nights of...

Sunset over the St. Croix River

A glowing sunset over the St. Croix River. Photo captured by Tammi Braund.

2023 Mammoth Challenge

Photo credit: Linda Stevens Shober Autumn has brought us deep and saturated color covering the river valley and some rains have brought back life to the flora, fauna, and fungi flanking our trails. Friends of Interstate and Straight Lake Parks welcome you to the...

Explore the beauty of Wisconsin’s Interstate Park!

Calling all nature lovers! Are you looking for a beautiful place to explore, hike, camp, or just relax? Then look no further than Wisconsin's Interstate Park. This stunning park is located on the St. Croix River, straddling the border between Wisconsin and Minnesota....

What to Expect Hiking at Interstate Park

What to Expect Hiking in InterstateInterstate TrailsPothole Trail.4 mile loop The western terminus of the 1,200-mile National Scenic Ice Age Trail and the most geologically unique trail in the park. A short hike to scenic views of the Dalles of the St. Croix River...
Cover for Friends of WI Interstate State Park and Straight Lake State Park
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Friends of WI Interstate State Park and Straight Lake State Park

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.

Wisconsin Interstate and Straight Lake Parks are both incredible. Come and experience the amazing mental and physical health they offer.You are using your senses here!πŸ˜ŽπŸ‘πŸŒŽStudies show that time in nature correlates with a drop in anxiety and depression. Going for a hike in a state park is a great way to spend time in natureβ€”and research supports that it boosts mental health and overall well-being. πŸ₯ΎπŸŒ²You can learn more about spending time in two of our beautiful state parks by visiting the Friends of WI Interstate State Park and Straight Lake State Park at Stepping Up for Mental Health this Saturday!🌟 Join us! πŸŒŸπŸ“† Date: May 11, 2024⏰ Time: 9am-noonπŸ“ Location: Gandy Dancer Park, Centuria, WI➑️Event info: loom.ly/jDAap74#MentalHealthAwarenessMonth ... See MoreSee Less
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Come to the Ice Age Center to pick up your Wisconsin Explorers Booklet.πŸ‘πŸ˜ŽπŸŒŽVisit the High Cliff Park Office to pick up your copies. They have arrived!SHARE NATURE WITH YOUR CHILDRENToday, many children are growing up in structured environments that don't allow much time or freedom to play outdoors. By helping them connect to things they discover in nature, you nurture values of good stewardship and build strong bonds that will last for a lifetime.Make tracks to the nearest state park property and ask for a free Wisconsin Explorer booklet. Inside you'll find nature activities, scavenger hunts, games, hikes and crafts to help you explore Wisconsin's great outdoors. Kids who complete the requirements will earn collectible state symbol patches. Don't just sit there β€” get out and start exploring together!WISCONSIN EXPLORER PROGRAM GROWS WITH KIDSThere are three age levels in the Wisconsin Explorer program (3-5 years, 6-8 years and 9 years and up). Three themes help kids explore different parts of the great outdoors. With nine booklets, a 3-year-old can begin the program this year and participate until age 11 without repeating a booklet.COLLECT ALL NINE PATCHES Kids who start the program at age three can collect all nine state symbol patches. To receive a patch, turn the form in at any participating State Park System property. Kids are only eligible to earn one patch per calendar year. If a property office is closed during your visit, you can mail the form with your name and address to the following location:Wisconsin Explorers OC/2, Department of Natural Resources, P.O. Box 7921, Madison, WI, 53707Wisconsin Explorer patchesAges 3-5American robin – state bird (2024)Honeybee – state insect Sugar maple – state treeAges 6-8Muskellunge – state fish (2024)Whitetail deer – state wildlife animalRed granite – state rockAges 9+Wood violet – state wildflower (2024)American badger – state animalTrilobite – state fossilEDUCATORS AND YOUTH LEADERSThe Wisconsin Explorer program is designed for individual children visiting state properties with family members or adult friends.Educators and youth leaders can download the PDF files of the booklets listed below or request one hard copy of each booklet. Permission is granted to copy individual activities, journal pages or entire booklets as long as copyright information remains on each page. However, children in these groups cannot earn patches.Booklet for ages 3-5 Booklet for ages 6-8 Booklet for ages 9 and upBooklet for ages 3-5 [PDF] Booklet for ages 6-8 [PDF] Booklet for ages 9 and up [PDF] ... See MoreSee Less
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Hanging out at the Pothole Trail in WI Interstate Park. ... See MoreSee Less
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Things are greening up on the St. Croix River. ... See MoreSee Less
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Views of the Pothole Trail at WI Interstate Park. ... See MoreSee Less
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Members and Sponsors

City of St. Croix Falls
Wisconsin DNR
Wild Rivers Conservancy
Village Pizzeria
Falls Chamber of Commerce
Village of Osceola, WI
Trollhaugen Ski and Snowboard
Andrie Electric
Osceola Chamber
Ice Age Trail
ABC Building<br />