Poronay

Poronay
幌内
Map of the Poronay watershed
Location of the mouth of the Poronay within Sakhalin Oblast
EtymologyAinu for "big river"
Native nameПоронай (Russian)
Location
CountryRussia
StateSakhalin Oblast
Physical characteristics
SourceMount Nevel
  locationEast Sakhalin Mountains
  coordinates50°22′19.30″N 143°10′56.33″E / 50.3720278°N 143.1823139°E / 50.3720278; 143.1823139
MouthGulf of Patience
  location
Sea of Okhotsk
  coordinates
49°13′31.77″N 143°07′23.44″E / 49.2254917°N 143.1231778°E / 49.2254917; 143.1231778
Length350 km (220 mi)
Basin size7,990 km2 (3,080 sq mi)
Discharge 
  locationPacific Ocean
  average120 m3/s (4,200 cu ft/s)

The Poronay (Russian: Поронай, Japanese: 幌内川) is the longest river on the island of Sakhalin in Russia. It flows in a southerly direction through Tym, Smirnykhovsky and Poronaysky Districts.