United States Potash Co. Railway

Hello ladies and gents,

I was surfing around the web today and came across a picture of a narrow gauge consolidation that belonged to the US Potash Co in Carlsbad, New Mexico. I was pretty interested after seeing this locomotive and tried to research the railway but only found very little (such as when the railroad was established/scrapped etc.) I was also unable to find any information on 20th century Potash mining other than the most generic operation is carrying the Potash ore from the mine to the mill. I was wondering if anyone had anymore information on the operations of this railway or any narrow gauge Potash hauling railroads of the 20th century. I haven't even been able to locate many other photos of this operation that show the mine/mill/or rolling stock used to transport the ore. All I've really been able to find is information on modern day processes in Canada.

So if anyone can fill me in on any info or direct me to any information on 20th century processes (or info on the railway/any other ng potash haulers) I would greatly appreciate it. I'm thinking this could be an interesting alternative to gold/silver/coal mining as far as model railroading is concerned

Thanks again