Fortification towers

Rock walls with cyclopean masonry. Protected access to all GS installations

Encloses MBII installations

MBII

Rock-cut Pool

Main reservoir for Eastern Hill (east) Jerusalem. Tunnel III entered the pool close to its bottom at 637 m elevation.

~50 m SE of the spring

Floor of pool at 637 m

MBII

Channel II

(Siloam Channel)

A near- surface rock-cut channel which carried water from the Gihon Spring into the Siloam Pool in southeast Jerusalem

Near-surface tunnel cut along Kidron Valley western flank

North entrance at 637.4 m

MBII

Tunnel III

Water conduit connecting Channel II with the Rock-cut Pool.

Branching from Channel II west

~637.3 m

MBII

Channel VI

Main water conduit from the GS into the WS cave and Hezekiah’s Tunnel

GS area

~635 m

IA II

Lower Tunnel

(LT)

Deepened segment of UT, intersects Warren’s Shaft near its bottom termination

Connected with and directly beneath the Upper Tunnel

Bottoms at 647.2 m (at top of WS)

IA II

Warren’s Shaft

(WS)

Natural, vertical karstic dissolution shaft. Used to draw water from karstic cave beneath it during IA II

Top 647.9

Bottom 634.9 m

IA II

Warren’s Shaft cave

Karstic cave beneath Warren’s Shaft. Water- fed via Channel VI

632.12

(Cave floor)

Quarternary

Hezekiah’s Tunnel (HT)

Subterranean aqueduct. HT provided secondary access and a secure supply of water to SE Jerusalem.

Entrance at

~635 m

~701 BCE

Sluice gate

Controled water level in HT aqueduct

71 m from S exit

~634.7 m

IA II

Siloam pool

Alternate water source for the Lower City. Acted as ritual pool since IA II

~ 605 m

MB II & later