Ceboruco, Stratovolcano in Nayarit, Mexico

Ceboruco is a dacitic stratovolcano in Nayarit rising to 2,280 meters. It has a large caldera formed by the Jala eruption, with a smaller crater nested inside that formed when the Dos Equis lava dome collapsed around 1100 AD. The upper slopes are green, a band of pale grey rock lies below, and fields of tall stalks fill the foreground.

The Jala Plinian eruption around 930 AD ±200, VEI 6, released 11 cubic kilometres of tephra and created the large caldera. A smaller crater formed inside it when the Dos Equis lava dome collapsed during the Coapales eruption around 1100 AD. The best-documented eruption lasted from 1870 to 1875, with fumarole activity continuing into the 20th century.

The name Ceboruco may mean "Black Giant" or, per the Ahuacatlán chronicler Andrés Montero Flores, "stony ground" or "heap of stones"; the pre-Hispanic name was Tonán, for the goddess Tonantzin. The volcano is a tourist draw above all for the municipality of Jala.

You can reach the volcano through a cobblestone road from Jala village, with hiking trails leading toward the summit. It is important to prepare for the altitude and bring suitable gear for mountainous terrain.

The caldera formed by the Jala eruption holds a smaller crater nested inside it, created when the Dos Equis lava dome collapsed during the Coapales eruption around 1100 AD. Cooled lava flows around the slopes, such as the Destiladero flow, record eruptions that predate the Spanish arrival in 1521.