Associated with Round Top, Mound 60 is a large, rectangular platform mound known as the Fox Mound. These two mounds seem to be united by a platform since a contour line surrounds them both on the UWM Map. The contour may, however, only represent a blending of the slope wash, or talus slopes, of the two mounds coming together. They probably were a unit since the relationship to each other is matched by other paired mounds at the site. They seem strongly reminiscent of the association of platform charnel-house mounds and conical burial mounds in ethnohistoric period of the southeastern United States.
Mound 60 is shown on the Patrick Map as a rectangular mound with the longer axis north-south. Measurements based on the Patrick Map suggest a north-south dimension of 160 feet (48.8 meters) and an east-west dimension of 125 feet (38.1 meters). Patrick shows a cross section of Mound 60, noting a height of 46 feet (14 meters). The later maps are consistent with Patrick's measurements: McAdams' of 1882 indicating a height of 45 feet (13.7 meters); Thomas 1894, 50 feet (15.2 meters); and Peterson-McAdams of 1906, 30 feet (9.1 meters). The 1966 UWM Map, using a 129-meter (423.2-foot) elevation as a base line, gives a height of 12.3 meters (40.4 feet). Bushnell (1904) refers to this as a rectangular, truncated pyramid with a height of 46 feet (14 meters), a north-south dimension of 160 feet (42.8 meters), and an east-west dimension of 125 feet (38.1 meters). Photographs of Fox Mound appear in several publications (Bushnell 1922: Figures 1 and 2; Parrish 1906; Moorehead 1929: Plate V; Titterington 1938: Figures 2 and 4).
There is no indication of excavation in this mound. Moorehead merely refers to it as one of the larger mounds of the site (1923: 48). It has not been cultivated and retains much of its original form today.