A haystack boulder is a glacial erratic. They are stones carried by a glacier.
A giant pink boulder was a local landmark east and south of Daventry town along the east road on the southern side of the road. It was a stone that looked like a dog's head. The rock was strange and out of place, there were no other pink rocks around Daventry.
A well-worn path around the rock leads to a house on the other side. The house of Old Sam, the Daventry's town butcher.