"The land we know as Ohio is home to a number of extraordinary earthworks built by indigenous residents of this region thousands of years ago," said Megan Wood, executive director and CEO of the Ohio History Connection. While not all earthworks in Ohio are specifically Hopewell Mounds – such as the solar-aligned Serpent Mound Historical Site in Peebles, Ohio, for example – Wood sees them all as "icons" of indigenous "cultural achievements".