The Ten Oclock Line is a captivating historical site located in Gosport, Indiana, USA. This imaginary boundary played a crucial role in organizing the placement of numerous forts and garrisons throughout the region during the early 19th century. Although invisible to the naked eye, its strategic importance cannot be overstated as it provided a defensive line against potential threats from British forces and Native American resistance. Visitors to this location can immerse themselves in the beautiful landscapes while pondering how such planning shaped American expansion and the development of the nations frontier territories.