It is located in the downtown area within the architectural and historical complex that occupies the First Congress of Anahuac Civic Square.

The first section features bossage, without columns, and an arch; the second section features a choir window, framed by two square Tuscan order columns; on the sides are two large medallions.

On top is a frontispiece portraying the eagle of Iturbide's imperial coat of arms.

In this place, on September 13, 1813, General José María Morelos y Pavón established the seat of the First Congress of Anahuac, in which he proclaimed himself Servant of the Nation and where he presented the Act of Independence and the famous document known as the Sentimientos de la Nación ('Feelings of the Nation').

During the earthquake of Saturday, December 10, 2011, the cathedral suffered structural damage.