The Mysterious Cave is a named location in Fallout 76 that players can find while exploring the northeast parts of Appalachia or progressing Fallout 76’s Treasure Unknown quest. When you enter the Mysterious Cave, you will find a keypad on the wall that requires a code.
But since there is no clue or such thing in the vicinity that hints at the code. Many players fail to enter the correct code and see what the door inside the Mysterious Cave leads to. Seeing that, we prepared a guide about Fallout 76‘s Mysterious Cave location, door code, and what it holds behind.
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Where to find Mysterious Cave in Fallout 76
As mentioned earlier, the Mysterious Cave is located in the northeast section of Fallout 76’s map. You can use the above map screenshot to reach its location.
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Since Mysterious Cave is a named location, once you discover it for the first time, you can teleport directly to its entrance afterwards in exchange for a few Caps.
What is the Mysterious Cave door code in Fallout 76
The Mysterious Cave and its door code are tied to Fallout 76’s Treasure Unknown quest. The door code is unique for all players. And to obtain it, you must trigger the Treasure Unknown quest by reading the accumulated mail at the doorway of the Grafton Pawn Shop.
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After that, you must find all Mysterious Map Fragments, add them to the board inside the Pawn Shop, and turn on the UV light by interacting with the nearby device to obtain your door code.
Where does the Mysterious Cave secret door lead to in Fallout 76
The Mysterious Cave’s secret door, which opens up to be a lift, takes you to the entrance of Vault 79. It was a teaser for Fallout 76’s Wastelander major update that added human NPCs for the first time.
If you complete the Wastelanders DLC, you will get access to Vault 79 and myriad other things like Gold Bullion currency, vendors, a new system and features, and so on.
As for your hunt for Mysterious Map Fragments leading to the Mysterious Cave, that ends with you finding the entrance of Vault 79. Near the entrance, you will find a few resources, a terminal with a tidbit of lore, a few workbenches, and such things.
That concludes our guide on Fallout 76 Mysterious Cave location, door code, and more. For more on Fallout 76, keep reading The Games Cabin.