noun
uphill road; ascending path
A road or path that goes uphill; often used for mountain trails or sloping streets.
この登り道は急で、自転車ではきつい。
This uphill road is steep and tough on a bicycle.
山頂まではずっと登り道が続く。
The uphill path continues all the way to the summit.
The opposite: a downhill road or descending path.
Compound of 登り (nobori, 'climbing') + 道 (michi, 'road').