Cross-section of a mound. This drawing shows a vertical cut through a tell (Tell Halif in the Judean foothills). It is a composite of all elements revealed after excavating. The flag-topped parallel vertical lines enclose the balks, one-meter-wide walls which separate the four-meter-square excavation areas (marked A3, A4, A5, A6). Layers of different materials are visible. The colors show cross-sections of architectural elements belonging to different periods: for example, the green structure on the lower slope (right) represents a massive outer defense wall from the Early Bronze II–III period (2,850–2,350 B.C.). This wall extends from area 5 through the balk and into area 6. The green structure on the left side of the mound marks an inner wall of the Early Bronze II–III period Later, in Iron Age I (1,200–1,000 B.C.) a storage pit, represented by the blue line, was constructed within this inner wall. The red rectangles indicate cross-sections of walls built during Iron Age II (1,000–800 B.C.)