Culiacán is a city in northwestern Mexico, the largest city in the state of Sinaloa as well as its capital and capital of the municipality of Culiacán. The city is located in a valley where the Tamazula River and Humaya River rivers meet to form the Culiacán River, and is located 55 m above sea level. It is located in the center of the state with almost equal distance to the other urban centers of the state: Los Mochis to the north, and Mazatlán to the south.