| Unnamed Gravel Pit | 1.7 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 1.7 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pits | 2.5 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pits Just N. of Mount Holly | 2.5 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pits 0.6 Mi. S. of Mount Holly | 3.1 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pits | 3.2 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Mount Airy Farm Mine | 3.8 mi | Diatomite | Surface | Past Producer |
| Unnamed Gravel Pit | 4.9 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 4.9 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 5.1 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 5.1 mi | Sand and Gravel, Construction | — | Producer |
| Hedgman Ore Banks | 5.7 mi | Iron | Surface | Past Producer |
| Unnamed Gravel Pit | 6.6 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 6.6 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 6.7 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 6.7 mi | Sand and Gravel, Construction | — | Producer |
| Trader Gravel Co. Pit | 6.8 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 7.2 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 7.2 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 7.3 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 7.3 mi | Sand and Gravel, Construction | — | Producer |
| R.w. Courtney Sand Pit | 7.8 mi | Sand and Gravel, Construction | Surface | Past Producer |
| William Jenkins Pit | 8.0 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 8.3 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 8.3 mi | Sand and Gravel, Construction | — | Producer |
| Mudstone Prospect | 9.5 mi | Clay | — | Prospect |
| Mudstone Prospect Se of Carters Wharf | 9.5 mi | | — | Occurrence |
| Pit Number 1 | 10.6 mi | Sand and Gravel, Construction | — | Past Producer |
| Unnamed Gravel Pit | 10.9 mi | Sand and Gravel, Construction | — | Producer |
| Clay Prospect Ne of Kinsale | 11.4 mi | | — | Occurrence |
| Clay Prospect | 11.4 mi | Clay | — | Prospect |
| Clay Prospect | 11.5 mi | Clay | — | Prospect |
| Clay Prospect Ene of Kinsale | 11.5 mi | | — | Occurrence |
| Abells Wharf Pit and Plant | 11.5 mi | Sand and Gravel, Construction | — | Past Producer |
| Brenton Bay Sand & Gravel Pit & Plt | 11.5 mi | Sand and Gravel, Construction | Surface | Producer |
| Leonardtown Sand & Gravel | 11.7 mi | Construction Sand and Gravel | Surface | Abandoned |
| Clay Prospect Ne of Kinsale | 12.2 mi | | — | Occurrence |
| Clay Prospect | 12.2 mi | Clay | — | Prospect |
| Calio Pit | 12.4 mi | Sand and Gravel, Construction | — | Past Producer |
| Calio Pit | 12.4 mi | Sand and Gravel, Construction | Surface | Producer |
| Unnamed Gravel Pit | 12.6 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit 2.0 Mi Ene. of Champlain | 12.6 mi | Sand and Gravel, Construction | — | Producer |
| Base Pit & Plant | 12.9 mi | Sand and Gravel, Construction | Surface | Producer |
| Unnamed Gravel Pit 1.3 Mi Nw of Redgate | 12.9 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 12.9 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit 0.3 Mi Se of Redgate | 13.0 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 13.0 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Davis Prospect | 13.2 mi | Diatomite | — | Occurrence |
| Unnamed Sand Pit | 13.3 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Sand Pit | 13.3 mi | Sand and Gravel, Construction | — | Producer |
| Oak Grove Pit | 13.7 mi | Sand and Gravel, Construction | — | Past Producer |
| Oak Grove Pit | 13.7 mi | Sand and Gravel, Construction | Surface | Producer |
| Unnamed Gravel Pits | 13.8 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 13.8 mi | Sand and Gravel, Construction | — | Producer |
| Stauffer Pit & Leonardtown Plant | 14.0 mi | Sand and Gravel, Construction | — | Past Producer |
| Unnamed Gravel Pit | 14.3 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 14.3 mi | Sand and Gravel, Construction | — | Producer |
| George Robberecht Pit | 14.5 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 14.5 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pits | 14.5 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 14.5 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit Just S. of Devils Reach | 14.5 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 14.7 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 14.7 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Ball W J Pit No 1 | 14.9 mi | Sand and Gravel, Construction | Surface | Past Producer |
| The Leonardtown Sand & Gravel | 15.0 mi | Sand and Gravel, Construction | Surface | Producer |
| Unnamed Gravel Pit | 15.1 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 15.1 mi | Sand and Gravel, Construction | — | Producer |
| 2 Unnamed Gravel Pits 4.2 Mi W. of California | 15.3 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pits | 15.3 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pits | 15.4 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 15.4 mi | Sand and Gravel, Construction | — | Producer |
| Indiantown Quarry | 15.4 mi | Talc-Soapstone | Surface | Past Producer |
| Hazel Run Quarry | 15.4 mi | Granite | Surface | Past Producer |
| Hazel Run Quarry | 15.4 mi | Granite | Surface | Past Producer |
| Unnamed Gravel Pit 1.1 Mi Se of Tintop Hill | 15.6 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 15.7 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Loveville-Md Sand & Gravel | 15.7 mi | Construction Sand and Gravel | Surface | Active |
| Unnamed Gravel Pit | 16.0 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 16.0 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Motycki Strip | 16.2 mi | Coal (Bituminous) | Surface | Abandoned |
| Unnamed Gravel Pit | 16.4 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit 2.5 Mi Ssw of California | 16.4 mi | Sand and Gravel, Construction | — | Producer |
| Walker Sand & Stone | 16.5 mi | Construction Sand and Gravel | Surface | Active |
| Unnamed Gravel Pit | 16.7 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pits | 16.7 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Davis Archie S Mine No 1 | 16.8 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Clay Prospect Nw of Oak Grove | 16.8 mi | | — | Occurrence |
| Clay Prospect | 16.8 mi | Clay | — | Prospect |
| Clay Prospect S. of Rollins Fork | 17.0 mi | | — | Occurrence |
| Clay Prospect | 17.0 mi | Clay | — | Prospect |
| Unnamed Gravel Pit | 17.6 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 17.6 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit 3 Mi N.w. of California | 17.6 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 17.6 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 17.6 mi | Sand and Gravel, Construction | — | Producer |
| Unnamed Gravel Pit | 17.6 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 17.8 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unnamed Gravel Pit | 17.8 mi | Sand and Gravel, Construction | — | Producer |
| Mark I Limted Pit No 1 | 17.9 mi | Sand and Gravel, Construction | Surface | Past Producer |