Getting a handle on visitor carrying capacity: A pilot project at Arches National Park
Annual visitation to national park areas is now counted in the hundreds of millions. In the decade of the 1970s visitation increased by 30 percent; in the 1980s it rose 35 percent. If this trend continues, national park areas can expect a demand for an additional 60-90 million recreation visits by the year 2000. This presents the National Park Service with a huge challenge--maintaining the integrity of park resources and visitors' experiences.
Hof, M., Hammett, J., Rees, M., Belnap, J., Poe, N., Lime, D. W., and Manning, B., 1994, Getting a handle on visitor carrying capacity: A pilot project at Arches National Park: Park Science, v. 4, p. 11-13.