About the year 1850 an act of vandalism was perpetrated at Ilkley, which would have been impossible in these days, when the Ilkley Local Board watches with such a keen eye anything that may enhance the historical interest of this rapidly increasing watering-place.
Below the two huge rocks known as "The Cow and Calf," which have attracted thousands of visitors and invalids on to the breezy heights whereon they stand, stood a rock larger than the Calf, which was known as the "Bull." It was much nearer the highway than the Calf [...]
The "Bull" rock had its name cut in large letters on the side that lay nearest the road, and it is much to be regretted that an unfortunate dispute between the owners of the free-hold and the lord of the manor, in which the former won the day, gave them the right to break up this noble rock and cart it away for building purposes. It is said that the Crescent Hotel wwas mainly built from this stone, so some idea may be formed of its vast size and proportions...
Admittedly pretty much repeating what's been said below, but with a hint to its whereabouts. From the Local Notes and Queries section of The Leeds Mercury, Jan 21nd, 1899.
I have since found a reference by Harry Speight from the mid-19th C that records cup and groove markings on both the Cow and Calf rocks. Now presumably lost under footwear and grafitti.
The most prominent landmark for miles around. There are no visible megalithic remains at this huge rock outcrop, but local folklore refers to this being a place worthy of strong consideration.
I've always found it a little strange that as the most prominent landmark for miles around, the Cow n' Calf didn't bear any cup n' ring marks as they can be found both to the left and the right of the outcrop. It is possible that any that may have been on the rock could have been lost under the onslaught of Victorian graffiti or the wear of thousands of pairs of feet every year.
The surface of the outcrop is worth a view just for the modern (mostly Victorian) graffiti, which is similar to dobbing around a churchyard reading gravestones.
It is thought that the Cow n' Calf name originates not from it's appearance, but from a tradition of lighting beacons on the rocks.
"The larger rock was once known as the 'Inglestone Cow'... The Scottish dialect word, ingle, 'fire burning on a hearth', may come from the Gaelic aingeal, meaning 'fire' or 'light'.
"There is strong evidence of an old calendar custom in the British Isles, around Beltaine or springtime in general, where the old fires are extinguished and new ones are lit. Cattle are then driven between two fires to divinely protect them from disease. 'Imbolc' means 'purification'. Inglestone Cow... Fire-stone Cow."
Gyrus - Verbeia: Goddess of Wharfedale
The Cow and Calf rocks were once accompanied by a huge Bull Stone. But this was quarried away in Victorian times.