The good locator is a reward from the Mobilising Armiesminigame. It starts with 50 charges and can be recharged by playing a game of Mobilising Armies. Another locator can be bought at a reduced price if a player has one when talking with War-chief Reeves at Mobilising Armies.
In addition to having the ability to teleport to all the previous locations of the poor locator, the good locator can also teleport to gold ore, mithril ore, yew tree, Fish 2, and Herblore Secondaries 2 locations.
Teleport locations are randomly selected from the following. More locations may exist. With a failed teleport it will read "The locator buzzes for a second, then emits a small puff of smoke. Oh dear." A failed teleport does not use a charge.