A lot of snow this year, worse winter for 40 years.
A shareholders report for the Greenhaugh Mining Co on 30th January 1917 told of deep snow over Greenhow, up to 12 feet deep in places:
The position of the Company is at the present moment delicate, apart from the above mentioned difficulties, as the continuous frost and enormous quantities of snow, to find the equal of which one must go back more than 40 years in this district, has frozen up the dressing place, which is also, owing to its not being covered in, buried in places under 12 feet of snow. For the same reason it has been practically impossible to keep the roads open to enable us to get coal, so that the mine has been standing idle on several occasions. As a consequence nothing has been earned and expenses have been heavy.