Trying to estimate the mill production by "days" of operation is hard, but not impossible. Lots of variables. Are they running 24 hours? Will this be 7 days a week? What's the weather like?
I picture heavy production during late spring to early fall. Late fall to early spring I imagine things will be tentative. Not all the mines are accessible during the winter, (we are talking over 10,000' elevation). The mill itself is accessible year around and has the ability to stockpile ore. There are times the road gets snowed in, but the county takes care of it and the office has apartments where the workers can hang out - with high speed internet. I'm not talking long term here. More like it might snow heavy during a day and a worker would have to spend the night. (Most of the rooms have a couple beds and there's one really nice apartment one of the prior owners lived in.) A whole shift could sleep there. Lol, if we were real shareholders living at the mill would be an employee requirement - in fact, they could hot bunk it just like in the Navy, and the company would deduct room and board to pass the profit on to us!
Things are starting to heat up in the area. The company has the distinction of being the catalyst for showing the local mine owners the DRMS can be worked with. I can see the mill being used to some capacity year around.