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| Miller, Ralph L. (1947), Manganese Deposits of Aroostook County, Maine, Bulletin 4, Maine Geological Survey, Augusta, Maine, pp. 77 + plates. |
| Miller, Ralph L. (1947), Manganese Deposits of Aroostook County, Maine, Bulletin 4, Maine Geological Survey, Augusta, Maine, pp. 77 + plates. |
| Miller, Ralph I., 1947, Manganese deposits of Aroostook County, Maine. |
| Miller, Ralph L. (1947), Manganese Deposits of Aroostook County, Maine, Bulletin 4, Maine Geological Survey, Augusta, Maine, pp. 77 + plates. |
| Anderson (1991) Maine Mineral Localities, 2nd ed. |
| Miller, Ralph L. (1947), Manganese Deposits of Aroostook County, Maine, Bulletin 4, Maine Geological Survey, Augusta, Maine, pp. 77 + plates. |
| Williams, Henry S. and Gregory, Herbert E. (1900) Contributions to the Geology of Maine, U. S. Geological Survey Bulletin 165, pp 212. |
| Boucot, Arthur J., Field, Michael T., Fletcher, Raymond, Forbes, William H., Naylor, Richard S., and Pavlides, Louis (1964) Reconnaissance Bedrock Geology of the Presque Isle Quadrangle, Maine, Quadrangle Mapping Series 2, Department of Economic Development, Augusta, Maine, pp 123 + plate. |
| Williams, Henry S. and Gregory, Herbert E. (1900) Contributions to the Geology of Maine, U. S. Geological Survey Bulletin 165, pp 212. |
| Miller, Ralph L. (1947), Manganese Deposits of Aroostook County, Maine, Bulletin 4, Maine Geological Survey, Augusta, Maine, pp. 77 + plates. |
| Chunzeng Wang, John F. Slack, Anjana K. Shah, Martin G. Yates, David R. Lentz, Amber T.H. Whittaker, Robert G. Marvinney A RECENTLY DISCOVERED TRACHYTE-HOSTED RARE EARTH ELEMENT-NIOBIUM-ZIRCONIUM OCCURRENCE IN NORTHERN MAINE, USA. Economic Geology 2022 doi: https://doi.org/10.5382/econgeo.4993 |
| Pavlides, Louis and Milton, Charles, 1962, Geology and Manganese Deposits of the Maple and Hovey Mountains Area, Aroostook County, Maine, U. S. Geological Survey Professional Paper 362, pp. 116 + plates. |
| Pavlides, Louis and Milton, Charles, 1962, Geology and Manganese Deposits of the Maple and Hovey Mountains Area, Aroostook County, Maine, U. S. Geological Survey Professional Paper 362, pp. 116 + plates. |
| pubs.usgs.gov (n.d.) http://pubs.usgs.gov/of/2005/1189/downloads/asbestos_sites.xls. Pavlides, Louis and Milton, Charles, 1962, Geology and Manganese Deposits of the Maple and Hovey Mountains Area, Aroostook County, Maine, U. S. Geological Survey Professional Paper 362, pp. 116 + plates. |
| Pavlides, Louis and Milton, Charles, 1962, Geology and Manganese Deposits of the Maple and Hovey Mountains Area, Aroostook County, Maine, U. S. Geological Survey Professional Paper 362, pp. 116 + plates. |