
A paved Andean crossing from the lakeside resort of Pucon to the Argentine frontier, climbing the Trancura valley through araucaria monkey-puzzle forest with the perfect cone of Lanin volcano filling the windscreen.
Leaving Pucon the 199-CH runs east along the Trancura river past Curarrehue, the farmland giving way to ancient stands of araucaria, the umbrella-shaped monkey-puzzles that are emblematic of the Chilean Andes. The road climbs steadily toward the Mamuil Malal (Tromen) pass on the flank of Lanin, a near-symmetrical 3,747 m volcano that dominates the drive, before reaching the remote border post. Quiet, fully sealed and framed by volcano and forest the whole way.
Scenery
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Where it runs
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Character
Elevation
under 4%4–8%over 8%222 – 1,161 mPoints of interest
- Llalin, la tejedora, esculturaLandmark
- Mirador Sector PuescoViewpoint
- Centro Artesanal PucónLandmark
Hazards
- Snow can close the pass in winter
- Volcanic ash advisories when Villarrica or Lanin are active
- Loose gravel on the shoulders
- Slow border formalities at the frontier
See the typical season and live conditions for the high passes ›
Sources: Road geometry © OpenStreetMap contributors
Nearby roads
The closest great drives to Paso Mamuil Malal.





