The road provides access to the monument's primary developed areas, such as headquarters and visitor center.

The road was originally constructed in 1917 with an eight percent grade and a ford at the Belle Fourche River.

A bridge was built in 1928, and the road was extensively altered in the 1930s with labor from the Civilian Conservation Corps, improving grades and alignments.

[4] A complete loop was planned by the National Park Service Engineering Division in 1927, but was never carried out.

The entrance road at Devils Tower is listed on the National Register of Historic Places as an example of close integration with the natural surroundings.