Coatepec- Aztec LocationLocation · Landmark"Serpent Mountain"

The Birth at the Summit

On Coatepec, the earth goddess Coatlicue served as a temple sweeper, maintaining the shrine atop the mountain. One day, as she swept the stone floors, a ball of fine feathers drifted down from the sky and lodged in her bosom. She tucked them into her waistband, but when she reached for them later they were gone. She was pregnant, with no father to name.

Her daughter Coyolxauhqui, outraged at what she saw as her mother's dishonor, rallied the Centzon Huitznahua, four hundred brothers who embodied the stars of the southern sky, and led them up the mountain's slopes to kill Coatlicue before the child could be born. They painted their faces for battle, adorned themselves in war regalia, and ascended Coatepec in fury.

As they crested the summit, weapons raised, Huitzilopochtli burst from the womb fully grown and fully armed. In his hand blazed the xiuhcoatl, the turquoise fire serpent, a weapon that was itself a ray of the newborn sun. He decapitated Coyolxauhqui with a single blow and sent her dismembered body tumbling down the mountainside, torso and limbs and golden-belled head scattering across the stones. Her brothers fled but he pursued them across the sky, slaughtering them until the survivors scattered and became the stars. The mountain that witnessed the birth of the sun was consecrated with the first blood the cosmos had ever shed.

The Migration Halt

During their long migration from Aztlan to the Valley of Mexico, the Mexica stopped at Coatepec. Water flowed from springs on the mountainside. The land was fertile. A faction within the tribe wanted to settle permanently, build irrigation canals, and farm the fields around the mountain's base.

Huitzilopochtli, speaking through his priests, forbade it. The Mexica had not yet reached the place marked by the eagle on the cactus. Those who resisted were killed or abandoned at Coatepec, cut from the migrating body as Coyolxauhqui had been cut from her own.

Serpent Mountain in Stone

The Aztecs rebuilt Coatepec at the heart of Tenochtitlan. The Templo Mayor's steep stairs replicated the slopes where Coyolxauhqui fell. At the pyramid's base lay the great Coyolxauhqui Stone, a disk over three meters wide carved with the goddess in her dismembered state: arms, legs, and head separated from her torso, with bells on her joints. The stone marked the spot where myth placed her shattered body.

Massive serpent heads flanked the base of Huitzilopochtli's stairway, their coiled bodies forming the balustrades. Serpent Mountain declared in stone before the worshipper began to climb. The temple was enlarged at least seven times over the empire's life, but each rebuilding preserved these elements. The earliest phase, a modest structure from the city's founding in the fourteenth century, already bore the serpent balustrades.

When the Spanish demolished the temple after the conquest of 1521, its stones were repurposed for churches. The Coyolxauhqui Stone lay beneath the pavement for nearly five centuries. In February 1978, electrical workers struck it. The excavation that followed uncovered the entire temple complex beneath colonial Mexico City.