Its valley delimits the Ţarcu Mountains to the south from the Poiana Ruscă mountains to the north.

The region is delimited by mountains in the north and west, by the Swedish border to the east and by Viken and Skagerrak to the south.

The inner boundary is delimited by the dry climate of the Syrian Desert to the south.

The Phu Phan Mountains delimit the province to the south.

The municipality of Alpatlahuac is delimited to the south by Coscomatepec and to the north by the Calcahualco.

It is delimited by the Ortler Alps to the north and the Adamello range to the south.

The bay is delimited by the capes of Punta Galea to the north and Punta Lucero to the south.

The municipality of Tenampa is delimited to the north by Tlaltetela and to the south by Totutla.

To the west, it is delimited by the Vigny stream; to the south, by the Pontoise stream and the Oise river.

The municipality of Nanchital is delimited to the north by Coatzacoalcos to the south by Minatitlán and Moloacán.