The soil series known as Scobey, of the taxonomic class fine, smectitic, frigid Aridic Argiustolls, is the official Montana state soil.
Mont. Code Ann. § 1-1-531, under State Symbols -- Official Designations.
Mont. Code Ann. § 1-1-531
The soil series known as Scobey, of the taxonomic class fine, smectitic, frigid Aridic Argiustolls, is the official Montana state soil.