The forest of Galtres which was a medieval forest, to the north of York stretched 15 miles from Monk Bar all the way up to Craike -Hill.

The forest was treacherous, rife with wild beasts, rife with wolves, and haunted by thieves and robbers. It was the scene of many perils and exploits. To guide travelers through the dangerous trees the lantern tower at All Saints church on Pavement, inside the walls of York, was illuminated, a beacon of light to guide them to safety.