Justin, there used to be, on FS Genesis, an incredible mesh add on for the Superstition mountains. It was for FS 2002. Was that ever updated to an FSX installer ? It was the best my Superstition Mountains ever looked !
This package consists of 38.2m (LOD=10) terrain covering 440 LOD=10 quadrants in the Superstition Mountains of eastern Arizona. Among the many spectacular locations included in the coverage area are the Salt River Canyon, Four Peaks, and Roosevelt Lake.
These files were compiled from 30m Digital Elevation Models obtained from The USGS National Elevation Dataset, EROS Data Center, Sioux Falls, SD. The DEM was verified using Manifold 5 and exported to ESRI .bil format. It was then resampled to 38.2m (LOD=10) using the Microsoft FS200x Terrain SDK.
Thanks and Acknowledgment is made to these organizations for the data and tools.