In 1999, Rick Janowitz determined that this river's source is the Llewellyn Glacier at the southern end of Atlin Lake, though many consider it to "off
In 1999, Rick Janowitz determined that this river's source is the Llewellyn Glacier at the southern end of Atlin Lake, though many consider it to "officially" start at Marsh Lake.  Along its course, it carves out Miles Canyon, which is spanned by the Robert Lowe Suspension bridge, and also receives the Porcupine, Fortymile, and Klondike before emptying into the Bering Sea.  Passing through the towns of Galena, Dawson, and Whitehorse, it is the longest river in Alaska. FTP, name this river that is also the longest in the Canadian territory with which it shares its name.
In 1999, Rick Janowitz determined that this river's source is the Llewellyn Glacier at the southern end of Atlin Lake, though many consider it to "officially" start at Marsh Lake.  
Yukon River