The History of Castle Rock

Castle Rock has long served as a natural lookout above the St. Ignace area. The Ojibwa people referred to it as “Pontiac’s Lookout,” recognizing the high limestone formation as a place where the surrounding landscape could be seen for miles. In 1929, Clarence Eby opened Castle Rock to visitors, establishing what would become one of the Upper Peninsula’s most enduring roadside attractions.

The formation rises about 195 feet above the surrounding water level and roughly 183 feet above nearby I-75. A staircase leads to the summit where visitors reach an observation platform overlooking the Straits of Mackinac. From the top, the view stretches for nearly 20 miles on a clear day. Mackinac Island, Lake Huron, downtown St. Ignace, and surrounding forest and wildlife habitat are all visible from this vantage point. Viewing binoculars are available at the lookout to help visitors take in the scenery across the straits.

Castle Rock remains a family-friendly stop and a memorable place to experience the landscape that defines the Straits of Mackinac.

Gift Shop

At the base of the rock, Castle Rock’s gift shop reflects the region’s history and craftsmanship. The interior features birch bark walls and ceiling panels that were hand-crafted by local Native American artisans in the early 1950s. Visitors will find a wide range of souvenirs including T-shirts, glassware, toys, and jewelry, along with other items that celebrate the spirit of the Upper Peninsula.