Wisconsin State Historical Marker 556, also known as the Vulcan Street Plant Replica, is located on the banks of the Fox River in Appleton, WI, USA. Constructed by the Wisconsin-Michigan Power Company in 1932 to commemorate the original plants 50th anniversary, it serves as a vital historical marker for Appleton and its significant role in the development of hydroelectric power. As you stand before this replica, imagine life without electricity and appreciate the innovations that brought us the power we depend on today. Let the murmur of the river transport you back to 1882 when Thomas Edisons hydroelectric central station first began its operation, serving private and commercial customers across North America. This replica stands not only as a symbol of Appletons history but also as a reminder of human ingenuity and progress over time.