An official State of Wisconsin historical marker was erected in 1997 along Amsterdam Prairie Road near the parking lot for the Van Loon Wildlife Area. The text on the marker is readable in the photo below. It tells the story of McGilvray Road, which dates back to the 1850s. The main channel bridge was built in 1892, and the side channel bridges were built between 1905 and 1908. The main channel bridge has since been demolished.

The photo above is the brown heritage sign that posted along Wisconsin State Highway WI-35, pointing north on Amsterdam Prairie Road. This sign was erected as part of the state heritage sign program.

The photo below is the sign for the Van Loon Wildlife Area. The refuge, which includes the McGilvray Road, is managed by the State Of Wisconsin Department of Natural Resources. The initial parcel of land was donated to the state by the Van Loon family, descendants of an early area settler.

These two markers are affixed to a large rock at the start of the trail leading to McGilvray Road. The marker above notes that the truss bridges were planed on the National Register of Historic Places in 1980, some 15 years before the bridges were restored and opened to the public. The marker below notes a much newer addition to the State of Wisconsin Register of Historic Places. This latter listing is maintained by the state historical society.