Bumpass is an unincorporated community located primarily in Louisa County, Virginia, United States, but covering a small portion of both Spotsylvania and Hanover Counties as well. It has received moderate fame for its unusual name. Bumpass was named for the Bumpass family (from the French Bon Pas meaning "good step") who lived in the area when it was named. It is known for its many farms, defunct ice cream spoon factory, alpaca ranches, and lumbering operations. It contains most of Lake Anna and several houses and estates from the 18th to early 20th centuries, including Jerdone Castle, a plantation (now lakefront) dating to 1742 that is a Virginia Historic Landmark and listed on the National Register of Historical Places. Also listed is the Duke House. In addition, Bumpass is the home of Argonaut BioFuels, one of the largest biomass-to-energy facilities in the country currently under construction. Alternate names associated with the locality include Bumpas, Bumpass Junction, Bumpass Station, Bumpass Turnout, Jackson District, Northern District, and Second Turnout.