The Question and Answer section for Into the Wild is a great resource to ask questions, find answers, and discuss the novel.
Krakauer uses actual quotations from Chris at the beginning of each chapter to connect the reader with Krakauer's narrative. The quotations bring about a sense of authenticity and context to each chapter.
A year after McCandless wanted to cross the river, Krakauer stands on the other side, also wanting to cross, with three companions. Krakauer has a map that shows that there is a gauging station only half a mile downstream, which has a wire...
What chapter are you referring to?