Interstate Park

State Park • WI

Overview

Interstate State Park is a geologically significant park located along the St. Croix River in northwestern Wisconsin near the city of St. Croix Falls. Known for its dramatic cliffs, deep river gorge, and rare glacial features, the park offers a striking landscape that feels rugged and timeless.

As part of the only interstate park in the United States, Interstate State Park is paired with its counterpart across the river in Minnesota. Together, the two parks preserve one of the finest examples of exposed basalt rock and pothole formations in the Midwest.

Landscape & Geology

Landscape

The landscape at Interstate State Park is defined by steep basalt cliffs rising above the St. Croix River. These rock formations were shaped by powerful glacial meltwater floods at the end of the last Ice Age, carving deep channels and smooth, cylindrical potholes into the stone.

Forested uplands, rocky outcrops, and riverfront areas combine to create a visually dramatic setting. The contrast between towering cliffs and the flowing river below gives the park a sense of scale and geological importance rarely found in Wisconsin.

Trails & Scenic Views

Trails

Interstate State Park features a network of trails that explore both the upper cliff areas and the river corridor below. Trails range from easy walking paths to moderate hikes that navigate rocky terrain and elevation changes.

Several routes lead to scenic overlooks and geological features, allowing visitors to view potholes, cliff faces, and sweeping river vistas. Trail interpretive signage helps explain the unique geological history of the park.

Recreation

Recreation at Interstate State Park includes hiking, picnicking, boating, and sightseeing. The St. Croix River supports canoeing and kayaking, offering a unique perspective of the cliffs and gorge from the water.

Picnic areas and scenic overlooks provide space for day use and relaxation, while educational opportunities draw visitors interested in geology and natural history. The park is primarily a day-use destination, emphasizing exploration and interpretation over extended stays.

History

Interstate State Park was established to protect the unique geological features carved by glacial floods thousands of years ago. Its designation as an interstate park highlights the shared natural heritage between Wisconsin and Minnesota.

The park has long served as a site for scientific study and public education, helping visitors understand the forces that shaped the region’s landscape. Preservation efforts continue to focus on protecting fragile rock formations and river ecosystems.

Why Visit

Find Your Next Adventure

Interstate State Park offers one of Wisconsin’s most dramatic and educational outdoor experiences, combining striking geology with scenic river views. Its cliffs, trails, and interpretive features make it a destination unlike any other in the state.

Whether hiking along the rim of the gorge, paddling the St. Croix River, or exploring ancient rock formations, visitors will find Interstate State Park to be a powerful showcase of natural history and landscape preservation.