What is the central conflict and how is it resolved?

I suppose one could argue that the conflict is between
Chris McCandless and his family or society at large, as he was estranged from his family
and very disillusioned with society in general but, to me, the central conflict is
actually between McCandless and nature.

Inspired by the
likes of writer Jack London, McCandless burned his remaining money, his driver's
license, and abandoned his car to venture north towards Alaska, supposedly to live out
his dream of getting back to the land.  He goes there alone, and wanders off (woefully
unprepared) into the Alaskan wilderness before the onset of a typical winter
there.

The resolution of this central conflict is that
nature humbles McCandless.  It corrects his arrogance, and in the end, kills
him.