Since someone first cut into a hillside, discovered the white chalk underneath and carved out the shape of a horse, people have been compelled to leave their mark on their surroundings
Skymirror was a giant light installation on a hillside in the shape of the constellation Pegasus, the winged horse.
It's a response to the vast Pennine landscape and a tribute the compulsion that humankind has felt to leave its mark on the landscape since the neolithic.
The finished work was constructed over the course of a week with the help of a team of volunteers. It's 75 metres wide, 120 metres high and uses 1800 solar powered lights. It twinkled into life each night between the 18th of September until the 16th of October, 2010.
The work was supported by a flyer with die-cut holes in the shape of the constellation so that the stars could be seen when held up to the light.
Skymirror is dedicated to John Henderson