The municipality is located north of the city of Ciego de �vila, bordering the Bolivia municipality to the east, Chambas to the west, the Bay of Buena Vista and the Jardines del Rey to the north and the Ciro Redondo municipality to the south. The terrain is mostly plain, with small hills to the north, made up of salt domes. The north shore is covered by marshes.
Mor�n has the largest natural water mirror in Cuba, Laguna de Leche, of 67.2 km (25.9 sq mi). Cayo Guillermo, one of the cays of Jardines del Rey archipellago is located north of Mor�n, across the Bay of Dogs (Bahia Perros).
The northern highway (Carretera del Norte) passes through the city; the main road from Ciego de Avila to Cayo Coco also skirts it. It is also linked by railway, to Ciego de Avila, and on the Santa Clara-to-Nuevitas line.
Previously the municipality was much larger, being one of nine in the previous province of Camaguey. In 1943, it was divided into the barrios of Coronel Hern�ndez, Chambas, Cupeyes, Este, Guadalupe, Mabuya, Marroqu�, Oeste, Punta Alegre, Ranchuelo, Santa Gertrudis, Sim�n Reyes o Sandoval and Tamarindo
