It was raining outside, and Bill was still worried about bears, so they went to a shelter for the night. However, another group of hikers met up with them, and they were loud and obnoxious:
"I've never done this before."
"What--camp in a shelter?"
"No, look through binoculars with my glasses on."
"Oh, I thought you meant camp in a shelter--ha! ha! ha!"
"No, I meant look through binoculars with my glasses on--ha! ha! ha!" (224-225; ch. 12)
They were so annoying that Katz and Bill left the shelter and camped in the rain!
Bill and Katz were picked up by Bill's family and they went home. When Bill got home, he still wanted to camp. He got in his car and drove along the AT to places they were skipping, and he hiked small portions of it. However, he didn't enjoy it much.
Bill reached Centralia. Because there was so much coal under the town, a fire had been burning under it for the last thirty-four years, and he read that it would continue for a thousand years. The town appeared to be completely abandoned, and steam was rising from the ground. He left.
Later, he went to a zinc mill near Palmerton, Pennsylvania. He wanted to see the mountain which had no vegetation thanks to pollution from the mill. He got into trouble with a security guard, but he eventually got away.
In Chapter 15, Bill goes on and on about how mountains are created, and that we are still in an ice age.