The main flow of meltwater from Kaskawulsh glacier now goes east and south to Kaskawulsh and Alsek River. The flow to the north and west through Slims River and Kluane lake has nearly dried out.

https://www.theguardian.com/science/2017/apr/17/receding-glacier-causes-immense-canadian-river-to-vanish-in-four-days-climate-change

http://www.yukon-news.com/business/the-curious-case-of-the-vanishing-river/