Environment

Originally the Great Circle had a diameter of 1,050 feet with five foot walls while the walls of the square were twelve feet high and fifty feet wide. (7)

The parallel walls extended for 2,400 feet towards the Scioto River and were 150 feet apart. (8)

One of the first detailed maps of the Hopeton Earthworks was created by Ephraim Squier and Edwin Davis in 1846 when they noted that the earthen mounds had significantly been reduced in size due to ploughing. (9)

Today, there is little that remains of the Hopeton Earthworks except for distinct grass outlines of where the earthworks were.

Recent archaeological work has discovered that the earthwork was once outlined by large wooden posts which were spaced apart every twenty feet which created a "woodhenge." (10)

The National Park Service purchased the land in 1988 and only until recently, in 2016, the earthwork is opened to the public for visitors to view the remnants of the earthwork. (11)