This data publication contains conditions of 36 campsites in low- to mid- elevation forests and grasslands in the Bob Marshall Wilderness, Montana. Campsites used in this study were used primarily by backpackers, private individuals with packstock, and commercial outfitters and their clients. Campsites were assessed in 1981 and 1990. Camp area, bare area, and extent of tree damage were measured. Tree seedlings, ground vegetation, duff, mineral soil exposure and compaction, species composition, and infiltration rates were also measured on campsites and comparable control sites.