A large granite boulder sitting in the middle of a graveyard in County Kildare carries, according to tradition, the physical marks of Ireland's patron saint: the imprints of St Patrick's feet, the pointed impression of his crozier, and an incised cross cut into the stone's surface. The boulder is earthfast, meaning it is embedded in the ground rather than placed as a moveable object, which gives it a quality of having simply always been there. The graveyard itself is an approximately rectangular enclosure, its ground rising toward the centre, the whole thing bounded by a modern wall.

The place name, Knockpatrick, translates roughly as Patrick's Hill, and sites bearing this name across Ireland typically cluster around early medieval associations with the saint, whether genuine, legendary, or devotional. The boulder's so-called imprints belong to a wider tradition of saint's footprints preserved in stone, a form of sacred topography common throughout Ireland and elsewhere in the early Christian world, where physical landscape features were read as traces of holy presence. There was also a well here, now blocked, which was noted by Jackson in the Journal of the Kildare Archaeological Society in the 1979 to 1980 volume. Holy wells in Ireland were often sites of pattern days, localised festivals of prayer and circumambulation, and their proximity to graveyards and marked stones was not unusual. The blocking of the well has quietly closed off one layer of what was likely a small but coherent devotional landscape.