The excavation went down to a really surprising depth: thirty or forty feet, he guessed.

The primary excavation has gone down to the 50,000 B.C. level, searching for any other archaeological evidence.

Each hour, Picard called down the same question: "And how does the excavation go now?"

The excavation of the post-humans' stasis dome was going well.

Wooden beams had been put in place to make sure it did not topple while the excavation went on.

Since the building had to be level, excavation went below the old foundations on the site, where there are two and a half levels below grade.

The excavation went fast enough until the trench began to grow very close to the titanium "it."

The excavation was a precise square, twenty feet on a side, going down to a depth of ten feet.

The excavation of rooms and passages in the yielding material went rapidly.

As excavations go, and I have seen my portion, Akrotiri is much more satisfying than most.