There are 1400 miles of the river in the state of Alaska and 900 miles in Canada. Of course you could land a floatplane almost anywhere to start or end a trip, but the Yukon does have enough road access to yield some good sections of river with access. There is the Canadian section, The Yukon Charley section, the Yukon Flats section, the haul road section and the far western section to consider.
As of June 26, 2016, 60 episodes of Game of Thrones have aired, concluding the sixth season. The series was renewed for a seventh season in April 2016, which will consist of seven episodes and premiere on July 16, 2017. The series will conclude with its eighth season, which will consist of six episodes.
Series showrunners David Benioff and D.B. Weiss have long said that they have a plan in mind with a specific endgame and number of seasons. But what is that plan, exactly? How many seasons are left of Game of Thrones? Tragically (or not, depending on how you feel about the show), the end is fast approaching. Benioff and Weiss spoke to Vanity Fair two years ago about their intentions to tie the show up after seven or eight seasons.