I'm trying to create a polyline (which i can save as .kml) for a public land boundary. The boundary runs along a river and is defined as the 1,144.3 foot elevation level. Everything above that elevation is private property. Everything at or below is public land. I'm using 70cm lidar DEM that is clipped to the river corridor, only. I'm using ArcMap 10.7.1. Can anyone share a process for generating this polyline?
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