Related Clues:
- Rich store
- Valued deposit
- Valuable mine discovery
- In report, responsibility is mine to some extent
- Vein of 7 Down
- Metal vein
- Vein of metal ore in surrounding rocks
- Vein underground
- 21-Across bonanza
- Miner's big find
- Extremely valuable mine find
- Rich source, as of knowledge
- Massive amount of 56-Across
- Major vein
- Rich mine deposit