N21 (Guinea)
| N 21 in Guinea | |
| map | |
| Basic data | |
| Operator: | |
| Start of the street: | Tanene ( N3 ) |
| End of street: | Lébékére ( N24 ) |
| Overall length: | 161 km |
| Requirement for use: | no |
The N21 is a trunk road in Guinea that begins in Tanene at the exit of the N3 and ends in Bouramaya at the entrance to the N24 . It is 161 kilometers long.