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.  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 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…

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 Explores earn a patch while learning about nature at amazing Wisconsin Interstate Park!🌎😎👏 ... See MoreSee Less
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Guide Book, Atlas and check off map are available at the gift shop to enjoying hiking the Ice Age Trail! 🌎👏😎 ... See MoreSee Less
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Come and check out the wildflowers at Wisconsin Interstate and Straight Lake Parks. 😎👏🌎 ... See MoreSee Less
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Nature Storytime participants are off to see the eagle's nest. ... See MoreSee Less
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Special Mother’s Day project being offered today at Wisconsin Interstate Park. Please come to the Ice Age Center!😎👏💐 ... 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 />