Roundhouse Floors-Durango and Como

I spent a few minutes tonight looking for pictures of the Durango roundhouse to see if the floor was dirt or concrete and the answer appears to be both. In the stalls where the engines were kept, the floor was dirt. There were several stalls which were converted to use as a machine shop in later D&RGW years, and the floor in that area was concrete. Those would be the stalls on the right side as you face the structure from the turntable. The shop area was separated from the engine stalls by a tall chain link fence. The pits were concrete.
The floor of the stone structure at Como was wood planks in the early 1900's when it was used as a machine shop. There may have been only two stalls used to house locomotives being serviced at that time, and one stall used for tank repair. Pictures taken at that time show it being very dark, but with a wood floor. When the structure was used to house locomotives, the floor was dirt and cinders. There is no evidence any of the stalls in the wood roundhouse at Como ever had floor other than dirt. The pits were stone.
Mike