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Stone description: Mesozoic
| Wall Number Sort descending | Country | State | Classification | Source |
|---|---|---|---|---|
| 5RB16 | United States | Massachusetts | Diabase | E. Longmeadow |
| 5RB35 | United States | Connecticut | Diabase | New Haven |
| 6LB14 | United States | Pennsylvania | Diabase | Collins Station Lancaster Co. |
| 6RB16 | United States | Pennsylvania | Diabase | Round Top Gettysburg |