E.J. and E. Griffith Interlocking Tower is a historic interlocking tower located at Griffith, Lake County, Indiana. It was built in 1924 by the Elgin, Joliet and Eastern Railway. It is a three-story, brick building measuring 25 feet long, 16 feet wide, and 30 feet tall. It has a concrete foundation and low pitched hipped roof. The depot operated until 1999. It was moved to its present location in the Griffith Historical Park and Railroad Museum in 2000.[2]: 5, 10
It was listed in the National Register of Historic Places in 2003.[1]