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Federal
Great Smoky Mountains National Park Hydography Points
Department of the Interior —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the parks's... -
Federal
Nitrogen Screening Project - Lakes in Parks
Department of the Interior —
This geodatabase contains lake feature datasets used for the Nitrogen Screening project. Individual metedata is available. The NHDPlus Version 1.0 is an integrated...