Canon del Sumidero, where Chiapa de Corzo meets a vertical world
Published on 08/19/2026 at 14:27 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Canon del Sumidero is a steep-walled canyon carved by the Grijalva River just north of Chiapa de Corzo in the southern Mexican state of Chiapas, a landscape where vertical rock walls frame a long water corridor. Declared a national park in 1980, it has become a landmark of protected nature in Mexico, combining geological drama with dense vegetation and an unusual mix of river, cliff and reservoir.
Canyon walls, river corridor and reservoir
The defining impression of Canon del Sumidero is the sheer height of its rock walls above the Grijalva River, which in places rise around 1,000 m (3,281 ft) from the water to the rim. The canyon runs through the mountains of central Chiapas and narrows to stretches where the river channel is hemmed in by near-vertical cliffs, then widens again towards the Chicoasén hydroelectric dam reservoir at its northern end.
The Grijalva River was impounded in the early 1980s at the upper end of the gorge by the Manuel Moreno Torres or Chicoasén hydroelectric dam, creating an artificial reservoir that extends along the full length of the canyon. Boat routes on the water follow this flooded corridor, with vessels passing caves, patches of jungle vegetation clinging to ledges, waterfalls in the wet season and occasional sandy or muddy banks where the cliffs recede.
A protected national park of cliffs and forest
Canon del Sumidero lies within Parque Nacional Cañón del Sumidero, a protected area covering in the region of 21,789 ha across several municipalities of Chiapas. The park boundary takes in the canyon itself, surrounding slopes and parts of the plateau above, where viewpoints and forest tracks intersect with patches of secondary vegetation and areas of more intact tropical forest.
The national park status was declared on 8 December 1980, reflecting both the ecological value of the canyon and the range of habitats created by its steep relief. Within the protected area, the combination of deep ravine, high rock faces, ledges, forested slopes and riverbanks gives rise to varied microclimates along its length, and the cliff profile is broken by caves and recesses that mark changes in the rock strata.
Viewpoints above and boat journeys below
Canon del Sumidero is experienced from two contrasting perspectives: the water level of the Grijalva River and the rim viewpoints reached by road from Tuxtla Gutiérrez and Chiapa de Corzo. On the river, motorboats depart from jetties near Chiapa de Corzo and Cahuaré, travelling along the waterway between the canyon mouth near the town and the Chicoasén dam at the upper end of the reservoir.
From above, a series of miradores, or viewpoints, along the rim road give panoramic views down into the gorge, with guarded platforms and railings set on solid rock near the edge. The contrast between the confined river route below and the expansive views from the rim makes the canyon a place where scale is understood both in close-up, passing beneath towering rock faces, and at a distance, seeing the full sweep of the gorge, reservoir and surrounding hills.
Visiting Canon del Sumidero: what travellers from Western Europe should know
- Canon del Sumidero lies in Chiapas, southern Mexico, with access by road from Tuxtla Gutiérrez and the colonial town of Chiapa de Corzo; boat embarkation points include Cahuaré on the Grijalva River.
- The canyon walls rise steeply from the river and the viewpoints on the rim are reached by roads with sections of gradient; stairways and guardrails at the platforms stand on solid rock close to cliff edges.
- The surrounding region has a tropical climate and the river level reflects the operation of the Chicoasén hydroelectric dam and seasonal rainfall, so the visual character of the water corridor can vary along the year.
- The official language in Chiapas is Spanish and the currency is the Mexican peso.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
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Frequently asked questions about Canon del Sumidero
Where is Canon del Sumidero located?
Canon del Sumidero is in Chiapas in southern Mexico, just north of Chiapa de Corzo and a short distance from Tuxtla Gutiérrez.
What should visitors expect on a visit?
Visitors encounter a deep canyon with tall rock walls, a river corridor by boat, forested slopes and viewpoints on the rim reached by road from nearby cities.
What makes Canon del Sumidero distinctive?
The combination of a narrow gorge, river, high cliffs exceeding around 1,000 m (3,281 ft) and its status as a protected national park gives Canon del Sumidero a character that is strongly shaped by vertical scale and water.
