Cañón de La Llorona, Natural canyon in Antioquia Department, Colombia

Cañón de La Llorona is a canyon cut by the Río Sucio on its course through the municipalities of Dabeiba and Mutatá, in Antioquia, about 320 km from Medellín. The Medellín–Urabá highway runs through it, and the 435 m La Llorona tunnel, built between 1993 and 1995, bypasses the narrowest, most landslide-prone stretch of the old road.

The Sucio River cut the canyon through Dabeiba and Mutatá. During Colombia's internal conflict, FARC-EP, ELN, AUC paramilitaries, the Clan del Golfo and the security forces fought here, including the Battle of Dabeiba, collective kidnappings known as 'pescas milagrosas', ambushes and coca-grower protests. The Medellín–Urabá road through the canyon was among Colombia's most dangerous; the 435 m La Llorona tunnel, built between 1993 and 1995, bypassed its worst section. In 2017 the Antioquia Assembly declared it an environmental importance zone.

The canyon's name comes from the La Llorona tunnel, opened in 1995 on the Medellín–Urabá road. Coca growers in the region have staged protests here, and the road through the gorge was long known for ambushes and 'pescas milagrosas' during the armed conflict.

A tunnel built through the canyon now allows safe passage on the road connecting Medellín to the Urabá region. The terrain is mountainous and can be steep in places, so sturdy footwear is helpful if you plan to explore beyond the main route.

The road through the canyon was long considered one of Colombia's most dangerous, owing to its narrow width, the area's complex geology and constant landslides, which caused many fatal accidents. Between 1993 and 1995 the 435-metre La Llorona tunnel was built, removing traffic from the most hazardous stretch.