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Find position up a stream routing system

Question asked by huffmanp on Feb 3, 2017
Latest reply on Feb 9, 2017 by Dan_Patterson

I keep getting asked about this and wondered if there is an elegant solution.  For our PIT tag release locations, I am commonly asked how many river KM the location is up from the mouth of the stream and what the river km is on the receiving stream for the mouth of the  contributing stream. While I can use the  Identify Route Locations to point at these locations down the stream on a stream route layer like SSHIAP (in Washington State), and copy down the route measures,  is there a better method where I can overlay a point feature class on stream routes and get that information of point measure and confluence measures downstream?  Is there a way to get route measures from NHD?