Porches in a mining camp...Where in the world???

This old panoramic photograph belonged to my daddy and it has always fascinated me, as it did him. We have tried for years to figure out the story behind this (coal mining?) settlement. It remains a mystery. If anyone out there can name the who, what and where of it please post a comment. Any clues are welcome!  
*The three following photos are out takes from the original panaramic shown at the very bottom of my blog home page. Note that virtually every dwelling has a porch, even the YMCA in the middle shot.