Water Quality

Water quality in a national park may reflect activities taking place upstream of the park’s surface waters as well as within the park. The water quality in Grand Teton and Yellowstone national parks, where most of the watersheds originate on federally protected land, is generally very high. However, it is vulnerable to impacts such as road construction, recreational activities, and deposition from atmospheric pollutants. The water quality in Bighorn Canyon National Recreation Area is more influenced by external inputs, including silt, nutrients, and pesticides that result from agricultural, domestic, and recreational uses of the Bighorn and Shoshone watersheds.
Updated 3/19/09