@Markerrag -- A slot coal yard is an improvement, but placing any kind of large coal storage facility anywhere is a problem. They have a reputation for being dirty and people tend to not want them near their businesses.
That results in a lot of those facilities being isolated. It is not hard to get a large tract of land in the middle of nowhere, and that can make the ideal location for a coal storage facility.
The only problem with that plan is that an isolated spot may not be as accessible as people would like, but decent roads will take care of that.