| Query | User |
|---|---|
| black chasm california | entered by user 3583885 |
| black chasm cave volcano ca | entered by user 793898 |
| california gem mining | entered by user 12537968 |
| california gold mines | entered by user 10580385 |
| cavern | entered by user 18538808 |
| cavern | entered by user ditto |
| caverns california | entered by user 347643 |
| caves california | entered by user 18538808 |
| caves caverns california | entered by user 7028942 |
| dialogue lesson plans | entered by user 8253599 |
| dialogue lesson plans | entered by user ditto |
| gold mine | entered by user 12538644 |
| gold mine | entered by user 10402513 |
| gold mines in california | entered by user 921261 |
| gold mining | entered by user 9108385 |
| gold mining | entered by user 10367362 |
| gold prospecting nevada | entered by user 4477691 |
| moaning cavern | entered by user 9919212 |
| moaning caverns | entered by user 103906 |
| nevada gold mines | entered by user 4477691 |
| nevada gold prospecting | entered by user ditto |