The road was originally a mule track used by tropeiros (muleteers) to transport goods between the coast and the highlands.
The route features a total of 284 curves throughout its ascent.
It is part of the Serra Geral mountain range, which contains significant geological deposits of coal.
Frost and occasional light snowfall can occur at the summit during the winter, a rarity for the region.
The viewpoint includes a large monument dedicated to the pioneers who navigated the treacherous path.
Construction of the modern paved road was completed in the 1980s to replace the dirt path.
The elevation change from the base to the top is roughly 1,400 meters.
The road is frequently used as a test track for automotive manufacturers due to its demanding technical layout.
Serra do Rio do Rastro is a mountain pass in the Santa Catarina range defined by a series of 284 hairpin turns across an elevation gain of over 1,400 meters. The road, designated SC-390, connects the coastal lowlands to the plateau region of Southern Brazil. It is characterized by deep ravines, thick vegetation, and frequent fog banks that obscure visibility within minutes. The peak observation point sits at an altitude of approximately 1,460 meters above sea level. Due to its steep topography and narrow roadway, the pass presents significant challenges for heavy vehicle navigation. The region experiences a humid subtropical climate, often resulting in temperatures near freezing during winter months. It is recognized as one of the most sinuous road stretches in South America.
The main observation deck (Mirante) located at the highest point of the winding section.
Drive in a low gear on the descent to prevent brake overheating.
Check local weather reports for fog conditions, as visibility can drop to zero suddenly.
Ensure your vehicle's cooling system is in optimal condition before attempting the climb.
Do not attempt to pass other vehicles on the hairpin turns; avoid stopping in the middle of the road for photos.
Maintain lane discipline at all times; do not pull over on blind curves to take photographs.
