Friendship Mound (also known as Rocky Bluff) is a located just north of the village of Friendship, Adams County, in the U.S. state of Wisconsin. It is the highest point in Adams County, with an elevation of 1,290–1,300 feet (390–400 m) and a prominence of 330 feet (100 m)—though the adjacent in Roche-A-Cri State Park is not far behind). is also adjacent to the mound, across Wisconsin Highway 13.