I was just playing in survival minecraft and found this cave system that looked straight out of an ARG.
seed: 984647017948026399
cave coords: 60 -5 -122 (these coords are in the middle of the mineshaft idk the entrance to the cave.
The cave has an Amethyst geode next to mineshaft and a trail chamber 200ish blocks away 16 ~ -272.
latest version 26.1.2 java
edit: i added the torches for lighting no other changes were made
by Standard_Engineer_52