United States Geological Survey (USGS). "United States Geological Survey Topographic Map". TopoQuest. مؤرشف من الأصل في 2022-12-01. اطلع عليه بتاريخ 2010-08-18. Map quadrangles, as follows, show river mileage from mouth to source: Lincoln City, Devil's Lake, Mowrey Landing, Toledo North, Eddyville, Euchre Mountain, and Valsetz.
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United States Geological Survey (USGS). "United States Geological Survey Topographic Map". TopoQuest. مؤرشف من الأصل في 2022-12-01. اطلع عليه بتاريخ 2010-08-18. Map quadrangles, as follows, show river mileage from mouth to source: Lincoln City, Devil's Lake, Mowrey Landing, Toledo North, Eddyville, Euchre Mountain, and Valsetz.