Gold Chest (red) - OSRS Wiki

A Gold Chest with red locks can be found in the Shade Catacombs during the Shades of Mort'ton minigame. A gold key red is needed to open the chest, after which the key dissolves.

Grand Gold Chest - OSRS Wiki

Wilderness, Old School RuneScape Wiki

Dragonstone - OSRS Wiki

Black Chest (red) - OSRS Wiki

Old School RuneScape - Wikipedia

Loot from 1000 golden keys at Shades of Mort'ton (last week's update) : r/2007scape

Opening Over 100 NEW Golden Chests (Shades of Mort'ton Rework)

Gold Chest (red) - OSRS Wiki

Dorgesh-Kaan Rich Chest, Old School RuneScape Wiki

Loot from 88-99 Agility in Sepulchre, opening all chests but floor 1 : r/2007scape

Opening Over 100 NEW Golden Chests (Shades of Mort'ton Rework)

Super Adventure Festival - Guild Wars 2 Wiki (GW2W)

Upstairs of the building in The Node is a chest that's the same asset as the chest in Pirate's Treasure, and the key from the quest can be used on it to