The usual rules apply when exploring derelict and vandalised buildings. They collapse, normally under snow or during periods of intermittent freezing. They are infested with broken glass, asbestos, and other goodies. There is no medical attention within 400km, so don't expect to survive a serious injury. Bears and other wildlife are constantly re-entering the area, so behave accordingly. Be prudent with displays of wealth amongst people who have nothing, including no police checking on them.
contact
Mobile phones do not work and the telegraph repeater station and line was long since replaced by satellite link. Communication with the outside world possible only by sat-phone or pigeon.