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Montagne d'Or Gold Project

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The Montagne d'Or project is a large-scale industrial gold mining proposal located in northwestern French Guiana, approximately 125 kilometers south of Saint-Laurent-du-Maroni. The site is situated within the Guiana Shield, a geological formation rich in mineral deposits. The project's feasibility study, completed in 2017, estimated gold reserves at approximately 85 tons (2.75 million ounces). It planned for an open-pit mine covering nearly 800 hectares within a total concession area of 2,500 hectares. Despite its economic potential, the project faced significant legal challenges and environmental opposition due to its proximity to biological reserves. In 2019, the French government initially blocked the development, leading to ongoing legal disputes between the mining consortium and the state. The project remains a central point of debate regarding the balance between economic development and ecological preservation in the Amazonian rainforest.
- Location: French Guiana
- Nearby: Saint-Laurent-du-Maroni (47 km)
Best time to visit & climate
The most pleasant time to visit is Aug–Oct.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 27 | 25 |
| Rain mm | 236 | 216 | 198 | 308 | 409 | 307 | 207 | 118 | 59 | 66 | 108 | 245 |
📋 Practical info
Geography
Facts
- Estimated gold reserves of 85 tons as of 2017
- Location is 125 km south of Saint-Laurent-du-Maroni
- Planned open-pit area of approximately 800 hectares
- Total concession area covers 2,500 hectares
- French government blocked the project in 2019
- Ore grade is estimated at 1.5 grams of gold per ton
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Frequently asked questions
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