Qualla: Desengano State Park

Desengano State Park: Introduction

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Governo do Rio de Janeiro, CC BY 2.0 br. The word desengano in Portuguese means disillusionment - the moment of being stripped of a comforting false idea. It is a strange name for a mountain, and strange names often have stories. The mountain earned it, some accounts say, because its peak looked close from a distance but proved almost impossible to climb. The rugged range containing Pico do Desengano rises to 1,761 meters in the north of Rio de Janeiro state, and in 1970 it became the oldest conservation unit the state would ever create. Half a century later, its slopes of up to 75 degrees still protect the last continuous stretch of Atlantic Forest in this region.

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Image: Governo do Rio de Janeiro | CC BY 2.0 br

Desengano State Park: The Terrain That Saved Itself

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Milene Bartholazzi, CC BY-SA 3.0. Desengano's scarps are nearly impossible to clear. Loggers need flat ground to fell trees safely and haul them out. Cattle ranchers want pasture that their animals can walk on. The 75-degree slopes that define this park are too steep for either. For centuries while surrounding lo...

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Image: Milene Bartholazzi | CC BY-SA 3.0

Desengano State Park: A Tiered Forest

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Brazil_location_map.svg: NordNordWest derivative work: Виктор В (talk), CC BY-SA 3.0. The vegetation climbs in layers. Dense submontane rainforest covers the lower slopes from 200 meters up. Montane rainforest takes over from around 500 meters and continues up. Above 1,600 meters the forest gives way to alpine meadows - high-altitude grasslands dotted with rocky o...

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Image: Brazil_location_map.svg: NordNordWest derivative work: Виктор В (talk) | CC BY-SA 3.0

Desengano State Park: Four Hundred Birds

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Eduardo Luiz Torres, CC BY-SA 3.0. About 410 bird species have been recorded in the Desengano region, which puts it in the first rank of neotropical biodiversity hotspots. The high-altitude meadows alone hold 283 species, of which 22 are endemic and exist in low numbers. Endangered birds you might see include the ...

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Image: Eduardo Luiz Torres | CC BY-SA 3.0

Desengano State Park: The Muriqui Returns

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Sérgio Costa, CC BY-SA 2.0. The big story in Desengano's research history happened in July 1999. A team observed a muriqui - the southern woolly spider monkey, Brazil's largest primate, one of the most endangered mammals on earth. Muriquis were thought to have vanished from this part of Rio de Janeiro state...

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Image: Sérgio Costa | CC BY-SA 2.0

Desengano State Park: Guarding What Remains

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Milene Bartholazzi, CC BY-SA 3.0. The park was created on April 13, 1970 by state decree-law 250. A 1983 state decree expanded the surrounding environmental protection area. Management falls to Inea, the Rio de Janeiro State Environmental Institute, whose rangers spend much of their time on patrols that catch hun...

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Image: Milene Bartholazzi | CC BY-SA 3.0