The bolts — which climbers use to fasten the ropes that keep them from falling from the rock face — were discovered in early November at the Pregnant Sheep Petroglyph Panel in northeastern Utah.

Rock 'Face' Mystery Baffles Experts Date: June 21, 2004 Source: University Of Newcastle Upon Tyne ... Records and examples of over 950 prehistoric rock art panels exist in Northumberland, ...

Rock 'face' mystery baffles experts ... Records and examples of over 950 prehistoric rock art panels exist in Northumberland, which are of the traditional 'cup and ring' variety, ...