His records show that the dromos had six huge natural stones (the largest one reaching 16 feet), is about 60 feet in length, 8 to 10 feet in height and 4 to 8 feet in width, and the walls were built of piled-up huge coarse natural stones.
記録によると羨道は巨大な自然石6枚（最大のものは16フィート）で天井を覆い、長さ約60フィート、高さ8～10フィート、幅4～8フィート、壁は巨大な粗い自然石を積んでいる。