On this page about The Devil's Footprints:
The Devil's Footprints was the name given to a peculiar phenomenon that occurred in Devon, England on 8 February, 1855. After a light snowfall, during the night, a series of hoof-like marks appeared in the snow. These "footprints", measuring 1.5 to 2.5 inches wide and eight inches apart, continued throughout the countryside for a total of over 100 miles, and, although veering at various points, for the greater part of their course followed straight lines. Houses, rivers, haystacks and other obstacles were travelled straight over, and footprints appeared on the tops of snow-covered roofs and high walls which lay in the footprints' path, as well as leading up to and exiting various drain pipes of as small as a four inch diameter.