This heavy door opens directly into the missile vault and was used to load and unload the missile erector.
North of the assembly complex is a storage network of earthen and concrete bunkers.
I did not take the escape ladder to the surface, but I am told it pops up in the middle of a hill next to the missile silo doors.
One of the storage bunkers was cracked open. I wonder how effective this heavy door would actually be… I expect, not very.
One of the many blast doors. Note the plunger to seal off the airflow in the event of an attack or accidental explosion.