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The bolt hole or dug out was built into the sides of a trench. The earth was shored up with wood and the roof often lined with corrugated iron. The men used the bolt hole for protection, eating and sleeping.

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"Bolt Hole" History on the Net
© 2000-2024, Salem Media.
April 20, 2024 <https://www.historyonthenet.com/dictionary/bolt-hole>
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