Yukon

Yukon, 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.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Yuga * Yule
Young People's Society of Christian Endeavour
Youngstown
Ypres
Yriarte, Charles
Yriarte, Thomas de
Ystad
Ystradyfodwg
Yttrium
Yucatan
Yuga
Yukon
Yule
Yule, Sir Henry
Yumboes
Yung-ling
Yunnan
Yuste, St.
Yves
Yvetot
Zaandam
Zabism