Buffer distances

Discussion created by Lori.Koepsell on May 8, 2013
Latest reply on May 9, 2013 by Lori.Koepsell
I have created a 25 mile buffer around a point layer.  It displays and measures correctly in both the UTM and Lat/Lon versions of my ArcMap viewer, however when I move it to one that is WGS 1984 Web Mercator (Auxiliary Sphere) for web display the resulting measurement is 35 miles, a difference of 10 miles.  I am not sure what I am doing wrong that would make the measurements so wildly different.