Did you know that all the places George writes about in Julie of the Wolves are real? Even Nunivak, Mekoryuk, and Kangik. For example, Mekoryuk is a real town on the island of Nunivak, and people still live there to this day.
Wolves really do have a language all their own, consisting of howls, grunts, barks, whines, and of course, gestures. (Source.)
Point Hope, Alaska is located 330 miles southwest of Barrow. That means that if Miyax were actually planning on walking from Barrow to Point Hope in a week, she'd have to travel over 47 miles a day. Now that's ambitious.