Heythuysen (population: 12,106) is a town in the southeastern Netherlands, in the province of Limburg. The municipality covers an area of 58.40 km² (of which 0.46 km² water).
... and navigable by rafts and light boats for 50 m., flows north and north-east with numerous rapids and shallows, and enters the Sea of Okhotsk. The Poronai flow ...