Welcome to Four Mounds! Four Mounds, a Dubuque Landmark Site, is listed on the National Register of Historic Places and is a Silos and Smokestacks National Heritage Area affiliate site. A model of volunteerism and community partnering at its best, Four Mounds is a non-profit organization with a mission to preserve and educate. We make the historic Four Mounds estate available in a variety of exciting ways...     • Bed & Breakfast   • Small Conference Center   • Hiking Trails            • Challenge Ropes Course   • Historic Gentleman’s Farm   Four Mounds is a leading partner in the Housing Education and Rehabilitation Training project, HEART