The golden mattock is an item reward for either watching the RuneFest 2019 streams on Twitch or redeeming a code given to attendees.
Right-clicking it has a teleport option which teleports the player to the RuneFest Treasure Island.
It can be excavated with for a Mining animation and in most locations a message "You can't find anything here. But you have a feeling something is out there..." Excavating at each of the following locations produces a medium smouldering lamp:
Obtaining a lamp produces the message: You have found a smouldering lamp! You have a feeling there are other locations you should excavate... for the first five lamps, and the sixth unlocks the Golden Mattock override with the following message: You have uncovered all of the clues! You have unlocked the Golden Mattock weapon override.
While ironmen can obtain the override, they will not get the lamp rewards.
This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!
- The golden mattock was named "dummy pickaxe" and the "excavate" option used to be called "swing" prior to a hidden update on 7 October 2019.
- At the time when the golden mattock was released, the locations at which the lamps were found were future locations of dig sites for the Archaeology skill.