From Diablo Wiki
- From the Quest Selection screen take Act II > quest No. 2. The Road to Alcarnus > Khasim Outpost.
- Take the waypoint from the Hidden Camp to Black Canyon Mines.
- Head directly south, over the bridge to the Howling Plateau.
- When you have reached the top of the slope into the plateau immediately head diagonally.
- If you see some steps down soon after then Fuad's Cellar has spawned, if it is rocks it could be A Miner's Gold event, the entrance to which is on the left side of those rocks.
- If it's not then leave the game, no need to look elsewhere as those can only spawn here. Resume Game at the menu and take the waypoint that will be waiting for you in the Hidden Camp back to the bridge and repeat until you find what you're looking for.