Signs designating a Farm to Market or Ranch to Market road are a black square background containing a white shape of the state of Texas, with the words "FARM ROAD" or "RANCH ROAD" appearing in white text on the background and the route number in black text within the shape of Texas. Guide signs (the large green signs usually found along highways in the United States) designating these roads use a simple white rectangle with the abbreviation "F.M." or "R.M." and the route number appearing below the abbreviation in black text.