The server url is in the pack.
Gregtech New Horizons(FTB, Technic, Curse) Is an ultra hard modpack with MANY 1.7 mods, years have been spent on this pack reworking the recipies to make a giant tech tree centered around gregtech.
The pack code for the FTB launcher is GTNH.
The oregen is very spread out and rare but deposits are MASSIVE.
Everyone has loved this pack so much we will have the old server for those that want to continue their progression, the new one is NOW open! The ip is in the modpack when you launch it.