You'll probably be better off renaming this WCIF to look for TJ Streak's Distant Terrain, OP. Your title was a bit vague yet the CC you're looking for is rather specific. TJ Streak's CC is notoriously elusive, but some people kept backups of his stuff or included his CC in the worlds/lots they built.
I was going through some CC and I found a package from a world I have installed that's listed as 'BasicLargeFlatDistantTerrain' but I'm unsure if it's what you're looking for as there's also a file in there listed as 'DistantTerrainIslandParadise', could anyone confirm if this is what OP was looking for? SFS link