Helmetta, NJ Mines
Mines in Helmetta, New Jersey
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Dallenbach Sand Co | Private | Sand and Gravel | ||
| Dallenbach Sand Pit | Dallenbach Sand Co., Inc. | Private | Sand and Gravel | |
| Gordon Dredge | Gordon Sand And Gravel Co., Inc. | Private | Sand and Gravel | |
| Gordon Sand and Gravel | Private | Sand and Gravel |
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