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2.
A highly potent form of marijuanna. Grows mostly, but is not limited to harsh, arid areas (such as the Yukon). This type of marijuanna is mainly found throughout Canada and the northern United States. Its name is derived from the color of the crystalized THC which appears yellow-ish. It is known to give very long, hard trips.
"Dude, Joey and I packed my lung with a gram of his finest Yukon Gold and we were trippin' for about six hours!"
by jwaynes August 28, 2005
 
1.
The best tasting beer known to mankind, brewed in Whitehorse at the Yukon Brewery
That yukon gold sure tastes fucking awesome.
by YKBK February 25, 2009