The Nuttall Encyclopedia
A great river of Alaska, rises in British territory, and after a course of 2000 m. falls, by a number of mouths forming a delta, into the Behring Sea; it is navigable nearly throughout, and its waters swarm with salmon three months in the year, some of them from 80 to 120 lbs. weight, and from 5 to 6 ft. long.
Wood, James, ed. Entry for 'Yukon'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/y/yukon.html. Frederick Warne & Co Ltd. London. 1900.