What is Billy's first impression of the campground?

From the text:

It was always a pleasure to prowl where fishermen had camped. I usually could find things: a fish line, or a forgotten fish pole. On one occasion, I found a beautiful knife stuck in the bark of a sycamore tree, forgotten by a careless fisherman. But on that day, I found the greatest of treasures, a sportsman’s magazine, discarded by the campers. It was a real treasure for a country boy. Because of that magazine, my entire life was changed.