The purpose of this study is to examine visitors' perceptions and to determine how these perceptions affect their recreation experiences along a segment of the Appalachian Trail in Great Smoky Mountains National Park. The study consisted of two parts—a visitor employed photography exercise and a posttrip interview. Analysis of the photographs and photograph logs show that participants noticed both negative and positive aspects of the trail environment. Five perceptual themes emerged from the interviews: nature-oriented details, scenic values, management influences, presence of other people, and depreciative behavior. Analyses indicate that these elements did not detract from participants' overall outdoor experiences. A model based on the study's findings is proposed to guide future visitor behavior research.