I have a points feature set in projection NAD_1983_StatePlane_Nevada_West_FIPS_2703_feet. GCS is North_American_1983. The Data Frame is the same. I have added in another points feature set that is in projection NAD_1983_UTM_Zone_11N. GCS is North American_1983. When running define projection on the second set into NAD_1983_Stateplane_Nevada_West_FIPS_2703_feet, the data adjusts but is still 2 million feet away from the first set. Both now are in GCS_North_America_1983, both are projection NAD_1983_Stateplane_Nevada_West_FIPS_2703_feet and extents show both are in feet. What is going on? I have poured through Lining Up The Data book and am at a loss here.