Why does Katz make a good traveling companion for Bryson, and what effect does he have on the unfolding story?

Research and describe some of the challenges the Eastern wilderness is facing as a result of natural and human causes (e.g., acid rain, urban sprawl, loss of wildlife habitat, etc.).

What role does friendship play in the journey that Bryson and Katz take?

What optimism, or lack of it, does Bryson's story have for the future of the American wilderness?