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how do I extract vegetation polygons from ndvi data?

Question asked by elist on Apr 20, 2017
Latest reply on Dec 14, 2018 by deanpodolsky

A long time ago I used a tutorial for the community basemap to create vegetation polygons from lasdsat ir data.  I'm trying to repeat the process but the old tutorial links no longer work.  Is there a wy to access this info still? The old link was


I've seen this article How to Create NDVI Maps in ArcGIS - GIS Geography  but was unable to download imagery from the usgs that had nir band.  I also found the ndvi data on arcgis online but cant figure out how to get the bands to just display  1 or -1 which I think is  step then turn in to a grid then polygon... does anyone else remember this process?