The 54th Massachusetts Volunteer Infantry Regiment Trail, which honors black Union soldiers from a county in Massachusetts and another in Connecticut, was inaugurated Wednesday with a reception and book signing. The self-guided, driving tour that includes 12 communities in Berkshire County, Mass. and Litchfield County, Conn. pairs a designated site with the history on a soldier from the regiment.

The 1989 movie “Glory” made the regiment famous.

The research for the trail was done by David Levinson and Emilie Piper, co-authors of “On the Other Side of Glory: The Berkshire Men of the 54th Massachusetts Infantry Regiment.”

The tour is the most recent addition to the African American Heritage Trail, a program of the Upper Housatonic Valley National Heritage Area.