1. Initial testing included digging 603 test holes , each 12 to deep and apart. 2. A nearby test hole also found evidence of fire-hardened stone, and organic remains. 3. Initial testing included digging 603 test holes deep and apart. 4. In other cases, horizontal mine test holes were sealed and the entrances covered over. 5. Archaeologists sank 2-foot-deep test holes on the vacant lot Tuesday. 6. But I need the test holes to confirm it. 7. Instruments in a separate 7, 000-foot-deep test hole that had been drilled earlier recorded data. 8. Test holes were dug into the shell midden, which was determined by be in size.9. When searching for a site, hobbyists can aid with electronic scanning, reducing the need for test holes . 10. Like modern animals, the ancient creatures might have dug several test holes before deciding on the right location.
