SCP-4003 is a old western town that is known for time travelling back to ancient times, mostly when the dinosaurs are alive and is able to take citizens with it during the event. It was discovered by a miner and during time travel the dinosaurs are able to see the town and people, it does take with weapons and objects that the people took with them but can't travel back to the future and has to wait years but still remains intact despite how long it waits to finally being dug out again.