Route national 17a (Madagascar)
The Route nationale 17a (RN 17a) is a 99 km long national road in the Atsimo-Andrefana region in southwest Madagascar. It branches off the RN 10 at Inanavy and heads east via Bezaha and Belamoty to Benenitra . The RN 17a runs parallel to the right bank of the Onilahy River .