Ribbon farms (also known as strip farms, long-lot farms, or just long lots) are long, narrow land divisions, usually lined up along a waterway. In some instances, they line a road.
The size of ribbon farms can vary from lot to lot and from place to place. In Illinois, these lots could be a quarter mile or more long and only 30–40 feet wide. Near Detroit, the ribbon farms were about 250 feet wide and up to three miles long. In Texas, lots could be as small as ten acres in area, or as large as five miles by twenty miles.
Farmers of ribbon farms typically, although not universally, built houses on the farm along the river such that the houses on a series of ribbon farms were located near each other.
Ribbon or strip farms were prevalent in diverse areas of the world along rivers; locations where these farms appear include in parts of Ireland, Central Europe (particularly in Germany and Poland), West Africa, Hokkaido, Brazil, and Chile. In the United States, ribbon farms are found in various places settled by the French, particularly along the Saint Lawrence River, the Great Lakes, and the Detroit River and tributaries, and parts of Louisiana. Some sections of the American Southwest, particularly Texas, also had ribbon farms laid out.
It is likely that platting farms in ribbon lots arose independently in various parts of the world. However, the ribbon farms scattered through the United States probably derive from the European model. The origin of the ribbon farm in Europe is unclear, but the first recorded appearance of these types of farms was in Germany in the ninth to eleventh century. These early German long lots were cut through forests or marshes, rather than along rivers, allowing for clustering of houses along a central road. From Germany, the pattern spread, notably to western France, where forest, marsh, and river long lots were well-established by the time the French began colonizing the Americas. By the 1630s, the long-lot pattern had been imported to the New World and established along the St Lawrence Seaway as the French seigneurial system. From there, the ribbon farm plan situated along rivers was carried to other parts of the French colonies, and diffused into some parts of the Spanish colonies.