Hydrography Publication Areas Oregon/Washington polygon
Each feature class or feature dataset is in Geographic (GCS) NAD83 unless otherwise noted
This dataset contains area features from the US Geologic Survey (USGS) High Resolution National Hydrography Dataset (NHD). NHD Area features show polygon representations of oceans, rivers, rapids, etc. Additional attributes have been added from the Bureau of Land Management (BLM) Aquatic Resources Information Management System (ARIMS). This data will be refreshed as-needed to reflect updates to the NHD and ARIMS.
This publication format is intended to improve the usability of the High Resolution NHD and ARIMS by combining attributes from both sources into one dataset with a simplified structure. The publication format includes the most commonly used attribute information. Other less commonly used attributes are available directly from the ARIMS system.