Aurora University submitted a proposal in September 2005 to purchase the Yerkes Observatory and surrounding acreage and buildings located in Williams Bay, Wis., owned by the University of Chicago. The proposal calls for purchasing a 79-acre parcel of land, including the Yerkes Observatory and telescope, as well as supporting structures. The observatory and 40 acres of land is located adjacent to the George Williams Campus of Aurora University in Williams Bay.

Aurora University’s plan offers an opportunity to create a future for Yerkes that is as compelling as its past. Our proposal takes into account a wide range of social, environmental and economic variables. "Our goal is to maximize the long-term educational use of one of America’s significant scientific icons and to preserve its physical structure and heritage," said Rebecca L. Sherrick, president of Aurora University.