Before you start jumping up and down with excitement (or, if such things aren't your cup of tea, barely raising an eyebrow!) it's not a real track of Bigfoot, of the Yeti, of Orang-Pendek, or even of the Big Gray Man of Ben Macdhui!
Rather, it's one of many carefully-carved "feet" that adorn the back-garden of Jon Downes' home (and which is also the HQ, of course, of the Center for Fortean Zoology) in Woolsery, England.
Most people tend to decorate their gardens and yards with far more down-to-earth items.
But, fortunately, Jon is not "most people"!
And, that's a very good thing, too! More power to Jon for ensuring that his garden stands out from the crowd!