Repositorio Institucional
| Río Macoita [1] |
| Río Macotia [1] |
| Río Mamo [6] |
| Río Mamo del estado Vargas [1] |
| Rio mamoncito [1] |
| Río Manaca [2] |
| Río Manapire [2] |
| Río Manaviche [1] |
| Río Manipitari [2] |
| Río Manzanares [3] |
| río Mápares [1] |
| rió Mapauri [1] |
| río Mapauri [1] |
| Río Mapire [7] |
| Río Mapirito [2] |
| Río Maraval [1] |
| Río Margua [2] |
| Río María [1] |
| Río Marieta [1] |
| Río Maripiche [1] |
| Río Marueta [1] |
| Río Marwani [1] |
| Rio Masaparro [1] |
| Río Masparro [4] |
| Río Masparros [3] |
| Río Matacuni [2] |
| Río Mataparí [1] |
| Río Matapiri [2] |
| Río Matare [1] |
| Río Matatan [1] |