Cog Hill Golf & Country Club is a public golf course and country club located 30 miles (48 km) southwest of Chicago, in Lemont. Cog Hill hosted the PGA Tour's BMW Championship from 2009 to 2011 on its championship course Dubsdread, as well as 16 times when the tournament was known as the Western Open.

Lemont is a village located in Cook, DuPage, and Will counties in the U.S. state of Illinois, and is a south-west suburb of Chicago. The population was 17,629 as of the 2020 census. The village is situated on a hillside along the south banks of the Des Plaines River. It overlooks Waterfall Glen's Midwestern Bluff Savanna on the opposite side. Lemont is home to Argonne National Laboratory and other heavy industrial sites, and has a substantial European immigrant population.