Earth obelisk

The earth obelisk is found a the end of Taverly Dungeon, just after the black dragon area and the ladder to the water obelisk. It is used to create earth orbs by using Charge Earth Orb on the obelisk with an unpowered orb in your inventory.

Like the water obelisk, you need to go through the most dangerous parts of taverly dungeon to reach it. Players with 70 or 81 agility can use the two shortcuts close to the entrance of the dungeon to reach the obelisk quickly. If not, you will need a dusty key to access the rest of the dungeon.

A fast way to do earth orb runs is to have a mithril grapple and any crossbow equipped and when a full inventory has been casted, you can climb the ladder, grapple out of the island, bank in Catherby, and teleport to Falador to reach the dungeon quicker.