| Nascentes da Serra do Cachimbo Biological Reserve | |
|---|---|
| Reserva Biológica Nascentes da Serra do Cachimbo | |
  | |
| Nearest city | Alta Floresta, Mato Grosso |
| Coordinates | 9°00′47″S 54°41′10″W / 9.013°S 54.686°W |
| Area | 342,192 hectares (845,570 acres) |
| Designation | Biological reserve |
| Created | 20 May 2005 |
| Administrator | Chico Mendes Institute for Biodiversity Conservation |
The Nascentes da Serra do Cachimbo Biological Reserve (Portuguese: Reserva Biológica Nascentes da Serra do Cachimbo) is a biological reserve in the state of Pará, Brazil. The reserve protects an area in the transition between the Cerrado and Amazon biomes, supporting highly diverse flora and fauna including many endemic species. It is accessible via the BR-163 highway, and is among the federal conservation units in the Amazon Legal that has suffered most from deforestation.