French Guiana protects 370,000 acres of rainforest and granite peaks

France has moved to safeguard a sweeping tract of Amazonian wilderness by creating a new nature reserve in French Guiana that protects an area roughly the size of a midwestern U.S. city. The designation covers dramatic granite outcrops ringed by mature rainforest and locks in protection for habitats that have long been largely untouched by development.

Known as the Rocky Peaks of Armontabo, the protected area spans approximately 370,000 acres and will join a growing network of reserves across the Guiana Shield — a biologically rich region that stretches from northeastern South America into Brazil, Venezuela and Colombia. Officials say the move is part of a broader conservation bill that also extends safeguards to several landscapes within metropolitan France.

What the Rocky Peaks of Armontabo reserve actually protects

The new reserve centers on a cluster of isolated granite inselbergs — steep, rounded peaks that rise out of the forest and create unique microhabitats. Around those rocky summits lies continuous, old-growth rainforest that supports an exceptionally high diversity of plants and animals.

• Unique geology: Giant granite peaks form steep, rocky environments that host specialized plants and provide refuges for wildlife.
• Intact rainforest: Large swaths of primary forest surround the peaks, offering uninterrupted canopy and habitat connectivity.
• High tree diversity: French Guiana is home to well over a thousand tree species, contributing to its status as one of the planet’s most biodiverse territories.

How this fits into France’s wider conservation goals

The reserve was established under a recent wildlands protection law that also puts other French landscapes under stronger legal protection. While the mainland designations are modest in size relative to Armontabo, the combined measures push France closer to its targets for protected territories.

Officials have framed the reserve as a practical step toward national targets, especially the commitment to increase strongly protected areas to 10% by 2030. France’s minister responsible for ecological matters said the change will translate to reduced pressures on sensitive habitats and stronger safeguards for species across the territory.

Why the Guiana Shield matters for global biodiversity

The Armontabo Peaks sit inside the Guiana Shield, one of the oldest and most species-rich regions on Earth. That geological block harbors a mix of Amazonian lowland rainforest, tepuis and other habitats that together sustain enormous biodiversity values.

Species and ecosystems benefitting from the protection

• Hundreds of bird species and diverse amphibian assemblages find refuge in the area.
• Charismatic mammals — including jaguars, lowland tapirs and giant river otters — roam the rivers and forests.
• Multiple primate species occupy the canopy and understory layers of these intact forests.

Conservation groups active in the region report that the area supports hundreds of bird types and scores of amphibian species, alongside an abundance of mammals and other wildlife. Those organizations have welcomed the reserve as part of a wave of protection that strengthens the whole Amazon-facing frontier.

Regional ripple effects: a patchwork of new protections across northeast South America

The designation in French Guiana comes as neighboring countries ramp up their own conservation commitments. Last year, Suriname announced protections for tens of millions of acres, a move praised by international conservationists for setting a high bar for Amazon-region stewardship.

Leaders from conservation NGOs celebrated the momentum, noting that strong national commitments from multiple countries help curb the regional drivers of deforestation and habitat loss.

On-the-ground benefits: what the reserve will do for forests and communities

By giving legal status to the Armontabo landscape, authorities aim to limit extractive activities and infrastructure development that fragment forest cover. That protection helps maintain hydrological cycles, preserve carbon stores in standing forests, and keep migration routes open for wildlife.

• Climate mitigation: Large, intact forests store and sequester substantial amounts of carbon.
• Habitat connectivity: Protected tracts keep ecological corridors intact, allowing animals to move seasonally.
• Cultural and scientific value: The area offers opportunities for Indigenous stewardship, research and low-impact ecotourism.

Voices from conservation groups and scientists

International conservation groups working in the Amazon basin have applauded the new reserve and the broader trend toward expansive, durable protections. Experts say decisions like this are especially significant when they preserve both geologically unique features and the contiguous rainforest that surrounds them.

Scientists and NGO leaders argue that the cumulative effect of national reserves, transboundary commitments, and on-the-ground management can change the conservation trajectory for a portion of the Amazon that has so far remained relatively intact.

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Michael Thompson

Michael Thompson is an experienced journalist covering U.S. and global news. With ten years on the front lines, he breaks down political and economic stories that matter. His precise writing and keen attention to detail help you grasp the real‑world impact of every event.