Since 1999, the National Park Service has conducted long-term ecological monitoring designed to identify and monitor conditions of their highest priority natural resources. The Eastern Rivers and Mountains Network is one of 32 networks formed to implement this integrated monitoring program which is tailored to specific needs of parks located in similar environmental settings. Due to its importance as a natural resource and as an important element of visitor experience, water-quality was selected as one of 12 core NPS natural resource inventories for which baseline data were collected system-wide.
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