&sq=&lang=&file=File:Schild_C21_NA.svg) | ||||
|---|---|---|---|---|
| Major junctions | ||||
| South end |  C19 near Maltahöhe | |||
 B1 at Kalkrand | ||||
| North end |  C15 at Hoachanas | |||
| Location | ||||
| Country | Namibia | |||
| Highway system | ||||
| ||||
C21 is a secondary route in Namibia that runs from Maltahöhe to Hoachanas via Kalkrand. It is 173 kilometres (107 mi) long.[1]
- ^ "C21 road (Namibia)" (Map). Google Maps. Retrieved 3 July 2020.