They are found in the upper mid western United States, west of the Mississippi river. It is thought to be the same specie as Pantherophis vulpinus which is found in the east of Mississippi river.
Adult Western fox snakes tend to attain a maximum length of 91-127cm and have a short, flattened snout. Their background color is gray or light brown with obvious reddish-brown blotches along the length of their bodies. Their head is usually orange or copper coloration with faded markings. The belly is light yellow or off-white covered in black markings.
Learn more with Schechter Natural History's Guide to Reptiles and Amphibians