NHD/LLID Data Conversion Application

This application, which was developed by StreamNet in cooperation with the EPA and USGS, is a database application that converts stream data from the National Hydrography Dataset (NHD) reach-based format to the PNW Reach File LLID-based format, and vice versa. This application was developed in part by rebuilding the 1:100,000 scale LLID-based route system onto the NHD linework.  

Go to http://www.streamnet.org/nhdllid/index.html to download this application.

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