Related Clues:

• See 38-Across
• Like enemy waters, maybe
• How some got diamonds
• Reaped from Earth, in a way
• Dug for diamonds
• Sought ore
• Quarried
• Dug up
• Sought salt
• Brought to the surface
• Searched for gold, in a way
• Excavated
• Got the lead out?
• Went for the gold?
• Used a shaft, say