Snow blockade. Here's the link to a fascinating article regarding the Long Winter about which Laura Ingalls Wilder wrote: http://boingboing.net/2012/12/11/the-meteorology-of-little-hous.html When I looked around online for that specific 1881 steam train, I was surprised at how OFTEN trains have been stranded when the railroad cuts filled up with snow. Really, it happened a lot!
Tuberculosis Outbreak Prompts Cull of Cows in Alberta - Approximately 10,000 cows are to be killed in the Canadian province to help prevent further spread of the disease. http://www.canadiancattlemen.ca/daily/more-culls-quarantines-added-to-bovine-tb-probe?utm_source=FBC+Publications&utm_campaign=91210e0eb5-Canadian+Cattlemen+daily+enews+Nov+29,+2016&utm_medium=email&utm_term=0_2da8244677-91210e0eb5-88118849