Utility Worlds Mod 1.8, 1.7.10, 1.7.2

Utility Worlds Mod 1.8, 1.7.10, 1.7.2 adds two portals (blocks) that can be crafted, the Mining Portal and the Void Portal.

To use a portal, simply craft it and place it in the world, then right-click it. This will teleport the player to a new dimension, one separate for each crafted portal.
At ...
Utility Worlds Mod 1.8, 1.7.10, 1.7.2 - http://www.8minecraft.com/utility-worlds-mod/