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Grays River (Washington)
Grays River is a tributary of the Columbia River, approximately long, in southwestern Washington in the United States. One of the last tributaries of the Columbia on the Washington side, it drains an area of low hills north of the mouth of the river.
==Course==
Grays River rises in the eastern Willapa Hills in southwestern Pacific County. It flows generally southwesterly across western Wahkiakum County. The river has three fork tributaries, the East Fork, South Fork, and West Fork Grays River. Below the West Fork confluence the main river valley broadens. Washington State Route 4 passes through the valley and the communities of Grays River and Rosburg. Fossil Creek joins Grays River above the highway and villages. Hull Creek joins from the north after passing through the village of Grays River. Roughly southwest of the village of Grays River, the river enters the broad portion of the Columbia River's tidal estuary from the north, at Grays Bay, about upstream from the Columbia's mouth. Grays River becomes tidal at the village of Grays River. In its lower course, especially below Rosburg, the river broadens due to the influence of tides.〔
The hills and ridges that separate Grays River's watershed from other watersheds is called the Grays River Divide. Rivers whose watersheds lie across the Grays River Divide include the Elochoman River, Chehalis River, Willapa River, and Naselle River. The short Deep River lies just west of Grays River and, like Grays River, empties into Grays Bay.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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