a North American river that flows westward from the Yukon Territory through central Alaska to the Bering Sea
"The cold waters of the Yukon carve their path across Alaska before emptying into the Bering Sea."
a territory in northwestern Canada; site of the Klondike gold rush in the 1890s
"The Yukon, a vast territory in northwestern Canada that was once the epicenter of the famous Klondike gold rush in the 1890s, remains one of the coldest regions on Earth."
A territory in northern Canada. Capital: Whitehorse.
"The Yukon is a vast and rugged territory in northern Canada whose capital city is Whitehorse."
The word Yukon comes from the Gwich'in language, where it originally described a "white water river." English adopted this term to refer to both the specific river and the vast territory surrounding it in northwestern Canada.