Each feature class or feature dataset is in Geographic (GCS) NAD83 unless otherwise noted
FISH_ANADROMOUS_ARC: This feature class is used to determine whether a particular anadromous fish species is present in a stream, which can affect protection buffer widths in land management plans and activities. The data comes primarily from the National Hydro Dataset (NHD), and is from actual observations or from modeled fish presence. While each district carried out their determinations in various ways, generally verification means that the fish biologist or other trained specialist was able to see the fish at the stream. This data is a decendent of the Aquatic Resources Information Management System (ARIMS).
This feature class is intended to provide detailed attribute data for the stream reaches and site events to facilitate the analysis of diverse hydrologic and fisheries data, and to use that information with other GIS resources.