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Basalt, linked to the Serra Geral Formation, appears over sandstone layers and helps explain the area’s relationship with aquifer systems in Southern Brazil.
Serra do Corvo Branco is mentioned in itineraries and geological materials for exposing formations associated with the Guarani Aquifer, one of the world’s largest underground freshwater reserves, present in four South American countries.
Local reports also mention changes in air flow between the coast and the plateau after the opening of the fissure.
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What to visit in Serra do Corvo Branco
The Serra do Corvo Branco fissure is the main observation point of the road.
The vertical cut allows visitors to see the rock faces up close and usually attracts visitors arriving from the Urubici side, where access remains more feasible.
At the top of the mountain range, the Parque Altos da Serra do Corvo Branco features panoramic viewpoints, suspended glass structures, light trails, swings, and views of areas such as the Vale do Rio Canoas and the Cânion Espraiado.
Reports and tourist guides note that the park has glass viewpoints facing the region’s rock formations, including suspended structures that have increased tourist visitation at the top of the mountain range.
Along the road, especially on the Grão-Pará side, there are observation points for the curves carved into the mountain.
Circulation, however, depends on the road conditions and the interdictions determined during the works.
Current situation of SC-370 and works in the mountain range
Access to Serra do Corvo Branco requires attention due to the paving works on SC-370.
The State Secretariat of Infrastructure informed that the road closure was initially planned for 12 months, with monthly safety re-evaluations.
The same official communication states that the mountain range will remain closed at least until June 2026, when the conditions for reopening should be re-evaluated.
In February 2026, the Urubici City Hall informed that the work had reached 60% completion.
For those leaving Urubici, the path to the fissure region is the main tourist access.
The section below the cut, on the Grão-Pará side, may have restrictions due to paving and the safety conditions of the work.
Serra do Corvo Branco combines historical value, geological interest, and tourist appeal in a short but striking stretch.
The road was born from a slow work, done under difficult conditions, and remains one of the most symbolic passages between the coast and the Santa Catarina mountain range.
Historic road between Urubici and Grão-Pará crosses gigantic rock faces, exposes geological formations approximately 160 million years old, and reveals one of the most impressive landscapes of the Santa Catarina Serra Geral, marked by dangerous curves, natural viewpoints, and a monumental cut opened manually in the rock.
The Serra do Corvo Branco, between Urubici and Grão-Pará, in Santa Catarina, offers one of the most impressive crossings of the Serra Geral, marked by vertical rock faces, sharp curves, and a rock cut approximately 90 meters deep.
The road is part of the SC-370, also known as Rodovia Pedro Kuhnen, and connects the mountainous region to southern Santa Catarina over a 57-kilometer stretch, with a significant elevation difference between the valley and the plateau.
The section became known for the cut opened in the sandstone and for the contrast between the monumental landscape and the difficult driving conditions, especially on the narrow curves and at points where the road follows steep slopes.
Origin of the name Serra do Corvo Branco
Despite its name, Serra do Corvo Branco was not given this identification because of a crow.
The most widespread explanation associates the expression with the king vulture (urubu-rei), a light-plumaged bird that flies over canyon and rock face areas in the region.
Old residents would have associated the bird with a large “white crow,” and the nickname came to identify the mountain range.
Over time, the name became consolidated in local and tourist use, even without a direct relation to a crow species.
The landscape also helped to solidify the name.
From certain angles, rock formations resemble the silhouette of a bird perched on the rock faces, reinforcing the popular association that eventually became incorporated into the place’s identity.
How the road was opened in the rock
The opening of Serra do Corvo Branco began with manual effort, before the road was officially inaugurated.
Local records indicate that the first initiatives occurred in the 1950s, in a project led by residents and local leaders.
The work involved simple tools, such as pickaxes, in addition to the use of a crawler tractor in decisive stages of the opening.
The highway was inaugurated on February 19, 1980, a date cited in historical records about the road.
The most famous cut crosses layers of sandstone and basalt and has become the most photographed point of the crossing.
There, the rock faces rise above the road and form a narrow gorge, often described as the largest cut in sandstone rock in Brazil.
Between Grão-Pará and Urubici, the route involves about 28 kilometers of ascent to the fissure area, with sharp curves, narrow sections, and points that require extra caution from drivers.
160 Million-Year-Old Rocks and the Guarani Aquifer
The rock formation of Serra do Corvo Branco is estimated to be around 160 million years old, according to tourist information from the municipality of Grão-Pará and materials on local geology.
On the rock face, visitors observe the alternation between sandstone and basalt.
Basalt, linked to the Serra Geral Formation, appears over sandstone layers and helps explain the area’s relationship with aquifer systems in Southern Brazil.
Serra do Corvo Branco is mentioned in itineraries and geological materials for exposing formations associated with the Guarani Aquifer, one of the world’s largest underground freshwater reserves, present in four South American countries.
Local reports also mention changes in air flow between the coast and the plateau after the opening of the fissure.
What to visit in Serra do Corvo Branco
The Serra do Corvo Branco fissure is the main observation point of the road.
The vertical cut allows visitors to see the rock faces up close and usually attracts visitors arriving from the Urubici side, where access remains more feasible.
At the top of the mountain range, the Parque Altos da Serra do Corvo Branco features panoramic viewpoints, suspended glass structures, light trails, swings, and views of areas such as the Vale do Rio Canoas and the Cânion Espraiado.
Reports and tourist guides note that the park has glass viewpoints facing the region’s rock formations, including suspended structures that have increased tourist visitation at the top of the mountain range.
Along the road, especially on the Grão-Pará side, there are observation points for the curves carved into the mountain.
Circulation, however, depends on the road conditions and the interdictions determined during the works.
Current situation of SC-370 and works in the mountain range
Access to Serra do Corvo Branco requires attention due to the paving works on SC-370.
The State Secretariat of Infrastructure informed that the road closure was initially planned for 12 months, with monthly safety re-evaluations.
The same official communication states that the mountain range will remain closed at least until June 2026, when the conditions for reopening should be re-evaluated.
In February 2026, the Urubici City Hall informed that the work had reached 60% completion.
For those leaving Urubici, the path to the fissure region is the main tourist access.
The section below the cut, on the Grão-Pará side, may have restrictions due to paving and the safety conditions of the work.
Serra do Corvo Branco combines historical value, geological interest, and tourist appeal in a short but striking stretch.
The road was born from a slow work, done under difficult conditions, and remains one of the most symbolic passages between the coast and the Santa Catarina mountain range.
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