Former Grove Plantation House at the Ernest F. Hollings ACE Basin National Wildlife Refuge in South Carolina. The refuge helps protect the largest undeveloped estuary along the Atlantic Coast offering food and cover to a variety of wildlife. ACE Basin stands for the Ashepoo, Combahee, and Edisto Rivers. The refuge office, a former rice plantation house built in 1828, is one of a few antebellum mansions that survived the civil war in the area. It is in the National Register of Historical Places.