The abandoned waste dump is a location in the Mire region of Appalachia in 2102. Hidden inside a cave at the site is the entrance to the secret bunker of former U.S. Senator Sam Blackwell and his daughter, Judy.
The exterior of the abandoned waste dump consists of a small yard surrounded by a rusting chain link fence and littered with highly radioactive nuclear waste barrels. A cave at the back of the yard opens into the cavern subsection, where more barrels are stored and up to three deathclaws can roam. At the rear of the cavern is a concrete structure with an elevator that leads into a bunker that belonged to Sam Blackwell, a U.S. senator who abandoned his office and went into hiding in the weeks before the Great War after learning about the Enclave conspiracy.
- Bypass holotape - Holotape, in a deathclaw nest during Bunker Buster.
- Operation Summary - Blackwell - Holotape, on the body of Agent Grey.
- There is a sign outside above the cave entrance that is readable and only gives letters of "CH."
- The player character can discover a secret elevator by going east-northeast to find a big rock and the elevator in it.
The abandoned waste dump appears only in Fallout 76.