This mod allows you to place redstone wiring vertically up walls. In the default game you can only run redstone wiring upwards if you use a stepping pattern, basically running the redstone up a series of stairs. Or alternatively, you can send a redstone signal up and down in a straight column by using a series of redstone torches. Obviously this is wildly impractical for most purposes. Anyone who likes working with redstone is going to love this redstone mod!