sentences:  In 1894, concerned about the influx of American miners and the liquor trade, the Canadian government sent inspector Charles Constantine of the North-West Mounted Police to examine conditions in the Yukon districts.The Klondike Gold Rush was the seminal event in the Yukon's history.A party led by Skookum Jim Mason discovered gold in Bonanza Creek, a tributary of the Klondike River, in August 1896.