Route nationale 11a (RN 11a) is a secondary highway in Madagascar of 204 km, running from Antsampanana to Mahanoro, to the Mangoro River. It crosses the region of Atsinanana.biblio.univ-antananarivo.mg
Selected locations on route (north to south)
Antsampanana junction with RN2 Vatomandry Mahanoro – 238 km
It continues as RN 11 from Mahanoro - Nosy Varika - 204 km - Mananjary
See also List of roads in Madagascar Transport in Madagascar
References