|The following is based on Fallout 76 unused content.|
The note is intended to be found at the deserted mine, an unused, unimplemented location that exists in the files but was not released with Steel Dawn. As such, the note cannot currently be acquired.
We're starting to think this place is only just a part of a much bigger network of tunnels being used by those mumbling bastards.
Every time we cleared them out more would show up. They finally stopped appearing once we barricaded the tunnels with all that shit we found in here.