A gravtrain bearing several tons of radioactive materials crashed some time ago en route to the Granite Research Facility, sometime during the course of Decentralization. All passengers were assumed dead, and since it was in a rural place, the dangerously high levels of radioactive leakage had not been cleaned up.
As a result, it is rumored that there are a number of valuable goods and electronics still aboard and around the train, but no one has been brave (or stupid) enough to plunder it.
See Halifax Explosion.