The Great Seal of the State of Montana was adopted in 1865, when Montana was a United States Territory.

The inner circle depicts a landscape of mountains, plains and forests by the Great Falls on the Missouri River.

A plow, a pick and a shovel are depicted on the front, representing the state's agricultural and mining industries.

[1] The banner at the bottom of the seal reads the territorial motto of Oro y Plata, meaning "Gold and Silver" in Spanish.

Montana also has many popular unofficial mottos including "The last best Place" and "Big Sky Country" [2]