Best T-Rex Locations on the Lost Island - Ark Survival Evolved

These are the best locations for T-Rex on the Lost Island that I have found. While T-Rexes spawn most anywhere on the Lost Island of Ark Survival Evolved, except the desert, these are where I have seen the most.  

Lat   Long
31.1   31.0
22.2   59.9
37.1   68.9

Here is another video showing the areas I tamed some high-level rexes on the Lost Island