Gruta da Lagoa Azul State Park, Natural limestone cave system in Nobres, Brazil
Gruta da Lagoa Azul State Park is a protected natural area in Mato Grosso featuring underground caves with limestone formations and a central blue-water lagoon. The cave system contains towering mineral columns and passages carved by underground waterways.
The cave system became a protected area in 1999 when the government established the state park through a formal decree. This action expanded protection from an earlier reserve to cover a broader conservation zone.
Local residents participated actively in the preservation efforts by supporting temporary closures to prevent vandalism and establish management strategies for the caves.
Visiting requires advance contact with local authorities to arrange access and schedule your visit. The managed approach helps protect the delicate cave environment from damage.
The cave system was shaped by underground river flow that gradually dissolved limestone over time. This geological process created towering mineral columns that rise dramatically within the caverns.
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