Durango is landlocked, bordered by Chihuahua, Coahuila, Zacatecas, Nayarit and Sinaloa. It is divided into 39 municipalities, based on the 1917 Constitution of Mexico, and several additional divisions have been made since.
The Sierra Madre Occidental blocks moisture from the Pacific Ocean, impacting the local climate of the state. Las Quebradas region, located over the mountain chain and on the northwest of the state, has a humid subtropical climate. Excepting the highest elevations, the rest of the state has semi-arid and temperate climates. It is hot and dry in the East, with some temperate areas existing at higher elevations.