The Dunlap Works are a group of Hopewell tradition earthworks located in Ross County, Ohio in the United States.

It is located approximately 6 miles (9.7 km) north of the city of Chillicothe, Ohio on the left bank of the Scioto River.

The west side of the work was a plain elevated a number of feet above the rhomboid itself.

The plain overlooked another, larger earthwork, with a large gateway providing access.

Another half a mile away was a group of mounds close to the avenue on the lower level.