The formation is technically a natural bridge created by the erosive forces of the Pagüe River acting upon limestone and shale rock faces.
During the 19th and early 20th centuries, this site was a recognized navigational landmark for pack animal trade routes connecting Cundinamarca and Tolima.
The canyon walls reach depths exceeding 100 meters in several sections near the arch.
The local geography is part of the broader Sumapaz massif influence zone, one of the world's largest high-altitude moorland ecosystems.
La Nariz del Diablo in Icononzo, Tolima, is a natural geological formation characterized by an arch-shaped rock bridge spanning a deep canyon. It is located near the confluence of the Sumapaz and Pagüe rivers, creating a unique microclimate in the surrounding valley. The site is a historically significant passage point used since the colonial era for transit through the mountainous terrain of the Eastern Cordillera. Visitors can observe significant rock stratification and erosion patterns characteristic of the region's Andean foothills. The area serves as a focal point for regional ecotourism, offering rugged trails for hikers and explorers. Its structural composition is a result of centuries of fluvial erosion on sedimentary rock formations.
The vantage point on the trail directly facing the arch that captures both the river below and the bridge span.
Wear high-traction hiking boots as the trails become slippery and steep after rainfall.
Carry sufficient water and sun protection as there is minimal shade on the exposed rock paths.
Use a local guide from Icononzo to ensure safe navigation of the canyon floor trails.
Attempting to hike the canyon floor during or immediately after heavy rain due to the high risk of flash flooding and loose rockfall.
Practice 'Leave No Trace' principles; do not climb on or deface the natural rock arch with graffiti.
