Black Mountain Ordnance Works

Black Mountain Ordnance Works is a location in the Forest region of Appalachia in 2103.

Background
This remote storage and disposal facility was operated by Cole & Parker Holdings Ltd., which leased secure, shielded domes to a variety of parties. Before the Great War, its two major clients were Greene Custom Defense Systems (at least one dome) and Nuka-Cola Corporation (at least two domes). Its earlier function was the manufacture of high explosives for the United States military and for this reason, it was folded under the command of the Department of Defense's Reclamation and Renovation branch. It appears, though, that the facility suffered a catastrophic fate before the war, with its acid vats exploding, rendering it useless for the war effort.

Layout
This location consists of a fenced-off area containing a building with an industrial area to its east. The building consists of a single room containing desks and file cabinets. There is a Picklock 3 safe in the floor beneath the desks which can be unlocked using the terminal on the desk. A skeleton of a dead soldier holding an army helmet lies in the corner of the building beside a toolbox. The industrial area is full of radioactive barrels, pools of toxic water and broken machinery.

TNT Dome #2 is southeast of this location, up the hill a bit from the inaccessible Dome 5. The key can spawn at one of three locations: Pleasant Valley cabins, inside a hidden wall safe buried beneath one of the cabins, abandoned mine shaft Elaine in a locker, or at the Mount Blair trainyard, also in a locker.

TNT Dome #3 is northeast of the office building. Follow the road, East 88, until it curves right and starts up a hill. Just before the curve, there is a rock pile on the left side of the road. The door to Dome #3 is on the left side of the rock pile. This is the Nuka-Cola collector's dome, and the key to the door is available after following a trail of clues and other keys:

Look for a corpse by Pylon V-13, on the ground near the entrance scaffolding. It contains a toolbox key, which leads to a toolbox on the Watoga shoreline, east from the Shopping Plaza, by the body of a woman on the sandstone formations. The key there leads to a dog house in Sutton, north of Red Rocket, which contains a key to a locker in the Kanawha Nuka-Cola plant. The locker is located behind the counter in the testing sign-in/interview area. The key leads to Dome 3 at Black Mountain Ordnance Works. The plans for the paint will spawn on top of the cart but are not instanced. Player characters only get one per server.

TNT Dome #7 is on the far side (east-northeast) of the first rock formation just to the northeast of the fast travel arrival point. In patch 1.1.0.8, it was made accessible by performing a key scavenger hunt for two paired key cards at Kanawha Nuka-Cola plant and Tanagra Town, the Nuka Cola marketing access code from the crashed plane site, generating a one-time use code from Ingram Mansion, then traveling to Overlook cabin to uncover two secret doors to get TNT dome key 7. The other TNT domes are scattered around the area and are inaccessible.

Notable loot

 * TNT Dome #2 - Requires a key in a safe underneath the large, northernmost house at Pleasant Valley cabins. The safe can be opened by using a one-time generated password given by a terminal in the house above the safe, which in turn requires M. Greene access code to obtain, which in turn requires stolen terminal passcode to obtain, which in turn requires rusted key to obtain.
 * Alien blaster rounds - There are three rounds on the table, and some in the metal box under the table. See the alien blaster round page for the key.
 * Plan: Alien blaster fusion mag to convert the alien blaster weapon to fusion cells.
 * Three hazmat suits.
 * Initial analysis - Note, on the table near the skeleton.
 * TNT Dome #3 - Requires a key which requires three other keys, each unlocking the container that the next key is in.
 * Plan: T-51 power armor Nuka-Cola paint - This paint is bright red and white with "Nuka-Cola" emblazoned on the chest and pin-up pictures on the legs.
 * Two spawns for a random variant of several Nuka-World outfits.
 * Two Nuka-Cola Quantums.
 * TNT Dome #7 - Requires a key located at the overlook cabin, which itself requires a generated password and two paired keys: one on top of Tanagra Town, under a tri-fold flag on the second floor of a ruined house and one in a bathroom stall at the Kanawha Nuka-Cola plant. The generated password is located at Ingram Mansion and requires a Nuka Cola marketing access code located underneath the crashed plane on a suitcase.
 * Plan: X-01 power armor Nuka-Cola Quantum paint - This paint is an understated, stylish blue with a small, discrete Nuka-Cola Quantum emblem.

Appearances
Black Mountain Ordnance Works appears only in Fallout 76.

Behind the scenes
The Black Mountain Ordnance Works may be based on the West Virginia Ordnance Works, an ammunition manufacturing plant spanning 2,000 acres that operated during World War II. It was also at this location that the first known sighting of the "Mothman" occurred in November 1966.