Hazor—A young workman stands near the rubble-filled entrance of the great 9th century B.C. tunnel.
Archaeologist Yigael Yadin came to Hazor expecting to find a water system comparable to the one discovered at Megiddo: that is, a vertical shaft, inside the city walls, connected to a tunnel leading to a spring outside the city.
Yadin found the Hazor water shaft and tunnel, but instead of leading toward a water source outside the city wall, the tunnel descended to the water table beneath the city. The confident tunneling of these ancient Israelite engineers suggests that they knew that by heading toward the water table, they could create a water system which would be completely enclosed and secure within the city walls.