ナプポロナイ川

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ナプポロナイ川 flows into 幌内川 , which it joins at N 44° 39′ 28″, E 142° 52′ 25″ at OSM node n1469847997, and there 302 km of total upstream flows in. load it's distributaries

ナプポロナイ川 has 1 tributaries.

• (unnamed), which joins it at N 44° 39′ 13″, E 142° 50′ 27″ at OSM node n1469847706, and 3 km of total upstream flows in.
load it's tributaries