| Atlantic Forest Biosphere Reserve | |
|---|---|
| Mata Atlântica Biosphere Reserve | |
 Alto Cariri National Park, Guaratinga, Bahia, Brazil | |
  | |
| Coordinates | 25°23′20″S 48°33′22″W / 25.388872°S 48.556029°W |
| Area | 62,319,744 hectares (153,995,440 acres)[a] |
| Designation | Biosphere reserve |
| Created | 1991 |
| Administrator |
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| Website | www |
The Atlantic Forest Biosphere Reserve, or Mata Atlântica Biosphere Reserve (MABR, Portuguese: Reserva da Biosfera da Mata Atlântica), is a biosphere reserve covering remnants of the Atlantic Forest in Brazil, including fully protected and sustainable use conservation units and buffer zones. It is the largest such reserve in the world.
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