Here in S. Ms. a large part of the logging operations involved the narrow gauge train tracks, or "Dummy Lines" being put down for transporting logs and material as they cut from one timber tract to another. Besides the small communities that sprung up due to the need of housing for workers families, schools/churches and stores, there was also those smaller communities that lived in railcars that were moved from tract to tract, not really being in the same location for any long period of time as were some of the other "camps". It is rare to find these short lived locations but good to be aware of them if you happen to be in the more remote areas and run upon a dummy line , and begin finding several of the short gauge "spikes" all strung out in a line. Any broken glass found may be indication of one of the short lived sites, and can be a choice site for some tight grouped finds from an area not so cluttered with iron, nails and other debris usually found in the longer settled housed sites. I found a few tokens(Company Store money) from one such site, and realized right off that there was very little other iron debris there other than an abundance of spikes and glass.Have to mention that My Pa -in-law is 94 and remembers living in one of those rail camp boxcars when he was a little boy. Don't know if your logging activities were the same , but likely were. HH, Charlie