According to the United States Census Bureau, the town has a total area of 35.9 square miles (93.0 km2), of which, 34.6 square miles (89.6 km2) of it is land and 1.3 square miles (3.4 km2) of it (3.65%) is water. The Town of Roxbury occupies Township 9 North, Range 7 East of the fourth principal meridian.New Atlas of Dane County, Wisconsin. Madison, Wis.: Leonard W. Gay, 1899, p. 55. The land in the Town of Roxbury is hilly, with high limestone bluffs in the west adjoining the Wisconsin River. Throughout the town, small areas of prairie are interspersed with oak groves. In the north lie several small lakes, including Crystal Lake and Fish Lake. Springs, ponds, and creeks also dot the area. Aside from the small hamlet of Roxbury, the town is agricultural. A vineyard, the successor to one founded by Agoston Haraszthy, lies in the northwest, overlooking the Wisconsin River.
