Ministry of Energy and Mines
| OMI Number | Status | Name | Primary Commodity | Secondary Commodity |
|---|---|---|---|---|
| MDI31F10SW00021 | Discretionary Occurrence | Galilee Lake | Mineral Specimen, Tremolite | |
| MDI31F10SW00002 | Occurrence | Green Lake | Marl | |
| MDI31F10SE00010 | Past Producing Mine Without Reserves Or Resources | East Quarry | Marble (Building Stone), Aggregate | |
| MDI31F10SE00009 | Producing Mine | H & H Aggregates Quarry | Marble (Structural Material) | Dolomite (Structural Material), Dolomite (Flux/Filler) |
| MDI31F10SW00004 | Occurrence | Astrolabe Campground | Fluorite | Apatite (Gemstones) |
| MDI31F10SW00040 | Prospect | Rose Farm | Molybdenum | Feldspar (Nonmetals) |
| MDI31F10SW00003 | Occurrence | Olmstead Lake | Marl | |
| MDI31F10NW00007 | Past Producing Mine Without Reserves Or Resources | J.E. Waite Clay Pit | Clay | |
| MDI31F10SW00005 | Discretionary Occurrence | Cobden Fluorite | Apatite (Gemstones), Fluorite, Mineral Specimen | |
| MDI31F10NE00002 | Occurrence | Sample 89 Ross-04 | Marble (High Purity/Flux) | Dolomite (Building Stone) |
| MDI31F10SW00039 | Occurrence | Woermke Sample No.4 | Uranium, Thorium | Apatite (Gemstones), Fluorite |
| MDI31F10SE00006 | Past Producing Mine Without Reserves Or Resources | Dominion Magnesium Ltd. | Marble (Building Stone), Marble (Structural Material) | Marble (High Purity/Flux) |
| MDI31F10SE00018 | Discretionary Occurrence | Ross Township Magnetite | Iron | |
| MDI31F10NW00011 | Discretionary Occurrence | Ross Graphite | Graphite | |
| MDI31F10NW00018 | Discretionary Occurrence | North Bennetts | Apatite (Gemstones) | |
| MDI31F10SW00019 | Occurrence | Pumphouse Lake Occurrence | Marble (Structural Material) | |
| MDI31F10SW00016 | Discretionary Occurrence | 86 Ross-001 | Marble (Structural Material) | |
| MDI31F10NW00036 | Discretionary Occurrence | Ross Mine | Apatite (Gemstones) | Fluorite, Zircon |
| MDI31F10SE00002 | Past Producing Mine With Reserves Or Resources | Timminco Metals | Dolomite (Metals), Magnesium, Calcium | Marble (Building Stone) |
| MDI31F10SE00012 | Occurrence | Canadian Dolomite Property | Marble (Building Stone) | |
| MDI31F10SW00029 | Prospect | A.G. Gould Property | Marble (Building Stone) | |
| MDI31F10SE00013 | Prospect | Park Reserve Outcrop | Dolomite (Flux/Filler) | |
| MDI31F10SE00011 | Occurrence | J. Cook Property | Marble (Building Stone) | |
| MDI31F10NW00035 | Discretionary Occurrence | H. Chevrier Property | Thorium, Uranium | |
| MDI31F10NW00029 | Discretionary Occurrence | Millars Corners | Asbestos | |
| MDI31F10NW00015 | Prospect | Bedford Quarry | Marble (Building Stone) | |
| MDI31F10SW00020 | Prospect | Ferguson'S Quarry | Limestone (Chemical/Flux) | Marble (Structural Material) |
| MDI31F10NW00010 | Prospect | Elliott'S Mine | Apatite (Gemstones), Mineral Specimen | Molybdenum, Fluorite |
| MDI31F10SW00028 | Discretionary Occurrence | Collecting Site | Mineral Specimen | |
| MDI31F10NW00021 | Discretionary Occurrence | Forresters Marble | Marble (High Purity/Flux) | |
| MDI31F10SW00033 | Occurrence | Marble Prospect | Marble (Structural Material) | |
| MDI31F10SE00023 | Discretionary Occurrence | Garden Of Eden | Tourmaline | |
| MDI000000001596 | Past Producing Mine Without Reserves Or Resources | John M. Jamieson Property | Limestone (Chemical/Flux) | |
| MDI31F10SW00011 | Prospect | Haley Station | Marble (Building Stone) | |
| MDI31F10SW00025 | Developed Prospect Without Reported Reserves Or Resources | Carswell Yard | Clay | |
| MDI31F10NW00039 | Occurrence | L. Vaughan Property | Uranium, Thorium | |
| MDI000000001766 | Occurrence | Easton Occurrence | Thorium, Uranium | |
| MDI31F10SW00006 | Discretionary Occurrence | Cole Mine | Fluorite | Apatite (Gemstones) |
| MDI31F10SW00018 | Discretionary Occurrence | East Haley | Dolomite (Building Stone) |
| Publication | Year | Title | Scale |
|---|---|---|---|
| P3791 | 2015 | Precambrian Geology of Eastern Ontario Interpreted from Aeromagnetic and Compiled Geological Data - Northwest Sheet | 100000 |
| M2042 | 1963 | Distribution of chert in gravels of southern Ontario | 1013760 |
| P1507 | 1978 | Mineral deposits series, Ontario mineral potential, Pembroke and part of the Ottawa sheets, District of Nipissing and counties of Renfrew, Hastings, Lennox and Addington, Frontenac, Lanark, Ottawa-Carleton, Grenville, and Dundas | 250000 |
| M2599 | 1992 | Shaded image of vertical gravity gradient of Ontario, southern sheet | 1000000 |
| P2715 | 1984 | Physiography of southern Ontario | 600000 |
| P2840 | 1986 | Compilation series, geochronology compilation map for Ontario, sheet 1: southern Ontario; Grenville province and environs, Ar-Ar and K-Ar isotopic systems | 1013760 |
| P1100 | 1976 | Mineral deposits series, mineral potential map of Ontario, 1976, southern sheet, southern Ontario and District of Nipissing | 1013760 |
| P2301 | 1980 | Mineral deposits series, vein silver deposits of Ontario, southern sheet, southern Ontario, and District of Nipissing | 1013760 |
| P2210 | 1980 | Geological series, radioactive mineral deposits of the Pembroke-Renfrew area, southern Ontario | 126720 |
| M2460 | 1982 | Cobden, Precambrian geology | 100000 |
| P2842 | 1986 | Compilation series, geochronology compilation map for Ontario, sheet 3: east-central Ontario, all isotopic systems | 1013760 |
| M2595 | 1991 | Bouguer gravity of Ontario, southern sheet | 1000000 |
| ARM17B | 1908 | Map of the iron industry of Ontario, showing location of iron deposits, also iron and steel works | 5068800 |
| P1980 | 1979 | Geological series, marbles of the Pembroke-Renfrew area, southern Ontario | 126720 |
| P2841 | 1986 | Compilation series, geochronology compilation map for Ontario, sheet 2: southern Ontario; Grenville province and environs, Rb-Sr, Nd-Sm, U-Pb, and other isotopic systems | 1013760 |
| P2591 | 1983 | Industrial minerals of Ontario | 1500000 |
| P3321 | 1995 | Known Kimberlites of Eastern Ontario | 50000 |
| P3533 | 2004 | Tectonometamorphic Map of Ontario | 500000,500000 |
| M2190 | 1970 | Ontario geology and principal minerals | 4224000 |
| M2196 | 1971 | Ontario geological map, explanatory text, legend, diagrams, title, scale | 1013760 |
| M1927A | 1927 | [Ontario: index map showing maps accompanying Annual Reports 1891-1927] | 2217600 |
| M1939A | 1939 | [Ontario: index map showing maps accompanying Annual Reports 1891-1939] | 1900800 |
| M1946-03 | 1946 | Geological map of the Province of Ontario | None |
| M1953A | 1953 | Mineral map of the Province of Ontario | 1267200 |
| M1957A | 1957 | Mineral map of the Province of Ontario | 1267200 |
| M1958A | 1958 | Ontario Province map showing geological maps published by the Ontario Department of Mines, 1891-1958 | 1267200 |
| M1958B | 1958 | Geological map of the Province of Ontario | 1267200 |
| M2024 | 1963 | Ontario mineral map | 1584000 |
| M2103 | 1966 | Ontario geology and principal minerals | None |
| M2148 | 1968 | Ontario mineral map | 1584000 |
| M2211 | 1971 | Ontario, geology and principal mineral collecting localities | 4224000 |
| M2310 | 1974 | Ontario mineral map | 1584000 |
| M2358 | 1976 | Clay and shale deposits of Ontario | 2000000 |
| M2389 | 1977 | Ontario, geology and principal minerals | 4224000 |
| M2391 | 1979 | Ontario geological map, explanatory text, legend, diagrams, title, scale | 0 |
| M2440 | 1981 | Geological highway map, northern Ontario | 1600000 |
| M2472 | 1985 | Ontario mineral map | 1584000 |
| M2505 | 1986 | Mines and Minerals Division, administrative areas and offices | 1584000 |
| M2506 | 1986 | Geological highway map, northern Ontario | 1600000 |
| M2545 | 1991 | Bedrock geology of Ontario, explanatory notes and legend | 0 |
| M2579 | 1992 | Chart A-Archean tectonic assemblages, plutonic suites, and events in Ontario | 0 |
| M2580 | 1992 | Chart B-Archean tectonic assemblages, plutonic suites, and events in Ontario | 0 |
| M2581 | 1992 | Chart C-Proterozoic tectonic assemblages, plutonic suites, and events in Ontario | 0 |
| M2582 | 1992 | Chart D-Paleozoic and Mesozoic depositional sequences and events in Ontario/Distribution of Paleozoic and Mesozoic depositional sequences | 0 |
| M2583 | 1992 | Tectonic assemblages of Ontario, explanatory notes and legend | 0 |
| P2851 | 1986 | Bedrock aggregate assessment of Renfrew County, Renfrew sheet, Brougham, Admaston, Horton, Blithfield, Bagot, and McNab townships | 50000 |
| M1960C | 1960 | Ontario limestone industries | 1267200 |
| P1229 | 1977 | Mineral deposits series, gold deposits of Ontario, southern sheet, southern Ontario, and District of Nipissing | 1013760 |
| M2040 | 1963 | Distribution of siltstone in gravels of southern Ontario | 1013760 |
| M2441 | 1979 | Geological highway map, southern Ontario | 800000 |
| M82610 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Ternary Radioelement Image, Renfrew Area | 50000 |
| M2587 | 1991 | Shaded image of total magnetic field of Ontario, southern sheet | 1000000 |
| P0800 | 1972 | Great Lakes-Ottawa River, aeromagnetic compilation map, Algoma, Sudbury, Timiskaming, Nipissing, and Manitoulin districts and southern Ontario | 1013760 |
| ARM27B | 1918 | Sand and gravel producing areas in southern Ontario | 2217600 |
| ARM39C | 1930 | Key map of part of the Province of Ontario showing location of plants for the production of heavy clay products | 1013760 |
| P2852 | 1986 | Bedrock aggregate assessment of Renfrew County, Pembroke sheet, Alice, Pembroke, Stafford, Westmeath, Wilberforce, Grattan, Bromely, and Ross townships | 50000 |
| ARM25B | 1916 | Part of Ontario showing the locations of lead and zinc deposits | 2217600 |
| M2130 | 1967 | Principal clay areas of southern Ontario and the clay products industry dependent on clay | 1013760 |
| M2591 | 1991 | Vertical magnetic gradient of Ontario, southern sheet | 1000000 |
| M82608 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Ternary Radioelement Image, Renfrew Area | 50000 |
| M2041 | 1963 | Distribution of shale in gravels of southern Ontario | 1013760 |
| M2264 | 1972 | Ontario limestone quarries, 1971 | 1013760 |
| OFR5260 | 1979 | Uranium mineral potential charts for parts of southern Ontario | 126720 |
| M2254 | 1972 | Paleozoic geology of southern Ontario showing bedrock industrial mineral producers | 1013760 |
| P2688 | 1986 | Sand and gravel assessment of Renfrew County, Pembroke sheet, Alice, Pembroke, Stafford, Westmeath, Wilberforce, Grattan, Bromely, and Ross townships | 50000 |
| P1044 | 1975 | Mineral deposits series, iron deposits of Ontario, southern sheet, southern Ontario and District of Nipissing | 1013760 |
| M82598 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Colour-Filled Contours of the Residual Magnetic Field, Renfrew Area | 50000 |
| M82609 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Ternary Radioelement Image, Renfrew Area | 50000 |
| P1247 | 1977 | Mineral deposits series, molybdenum deposits of Ontario, southern sheet, southern Ontario, and District of Nipissing | 1013760 |
| P0972 | 1975 | Mineral deposits series, uranium and thorium deposits of Ontario, southern sheet, southern Ontario and District of Nipissing | 1013760 |
| M5510 | 1990 | Cobden, NTS 31F/NE, data base map, southern Ontario engineering geology terrain study | 100000 |
| P0452 | 1970 | Aeromagnetic maps of carbonatite-alkalic complexes in Ontario | 4224000 |
| P3781 | 2015 | Precambrian Geology of the Chenaux Gabbro, Grenville Province | 20000 |
| M2117 | 1966 | Paleozoic geology of southern Ontario, showing bedrock industrial mineral producers | 1013760 |
| M82603 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Shaded Colour Image of the Second Vertical Derivative of the Residual Magnetic Field and Keating Coefficients, Renfrew Area | 50000 |
| M2131 | 1967 | Principal shale areas of southern Ontario and the clay products industry dependent on shale | 1013760 |
| M2183 | 1969 | Ontario marl deposits | 1013760 |
| M82602 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Shaded Colour Image of the Second Vertical Derivative of the Residual Magnetic Field and Keating Coefficients, Renfrew Area | 50000 |
| M2059 | 1964 | Ontario limestone quarries, 1963 | 1013760 |
| P2730 | 1985 | Geological series, Paleozoic geology, Cobden area, southern Ontario | 50000 |
| M00222G | 1955 | Geophysical series, Cobden, Renfrew and Pontiac Counties, Ontario and Quebec, ariborne magnetic, total field | 63360 |
| M82596 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Colour-Filled Contours of the Residual Magnetic Field, Renfrew Area | 50000 |
| P2209 | 1980 | Geological series, industrial minerals of the Pembroke-Renfrew area, southern Ontario | 126720 |
| OFR5328 | 1982 | Mineral potential map of Ontario, southern sheet, southern Ontario and District of Nipissing | 1013760 |
| OFR5228 | 1976 | National geochemical reconnaissance map 2-1976, southern Ontario, Canada- Ontario subsidiary agreement on mineral exploration and development | 250000 |
| M2039 | 1963 | Distribution of limestone, dolomite and Precambrian pebbles in gravels of southern Ontario | 1013760 |
| ARM25C | 1916 | Part of southeastern Ontario showing relations of galena-calcite-barite veins to major elements of geologic structure | 500000 |
| M1976-05 | 1976 | [withdrawn, replaced by P.1507] | 253440 |
| P0452-REV | 1970 | Aeromagnetic maps of carbonatite-alkalic complexes in Ontario | 4224000 |
| P2685 | 1986 | Sand and gravel assessment of Renfrew County, Renfrew sheet, Brougham, Admaston, Horton, Blithfield, Bagot, and McNab townships | 50000 |
| M82597 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Colour-Filled Contours of the Residual Magnetic Field, Renfrew Area | 50000 |
| P1063 | 1975 | Mineral deposits series, nickel deposits of Ontario, southern sheet, southern Ontario and District of Nipissing | 1013760 |
| P2424 | 1981 | Mineral deposits series, uranium and thorium deposits of Ontario, southern sheet, southern Ontario and Nipissing, Muskoka, Parry Sound, Sudbury, and Manitoulin districts | 1013760 |
| ARM53B | 1944 | Renfrew area, Province of Ontario | 126720 |
| M2197 | 1971 | Ontario geological map, southern sheet | 1013760 |
| M2038 | 1963 | Sand and gravel pits in southern Ontario | 1013760 |
| M2544 | 1991 | Bedrock geology of Ontario, southern sheet | 1000000 |
| M2556 | 1991 | Quaternary geology of Ontario, southern sheet | 1000000 |
| M2227 | 1972 | Physiography of the eastern portion of southern Ontario | 253440 |
| M82604 | 2014 | Airborne Magnetic and Gamma-Ray Spectrometric Surveys, Shaded Colour Image of the Second Vertical Derivative of the Residual Magnetic Field and Keating Coefficients, Renfrew Area | 50000 |
| M2392 | 1978 | Ontario geological map, southern sheet | 1013760 |
| M07057G | 1981 | Geophysical series, Pembroke, Ontario - Quebec, airborne magnetic, total field | 250000 |
| P2211 | 1979 | Geological series, base and precious metals, iron and molybdenum deposits of Pembroke-Renfrew area, southern Ontario | 126720 |
| P2565 | 1982 | Industrial minerals of the Algonquin region, Pembroke area, southern Ontario | 125000 |
| P2366 | 1980 | Geological series, Quaternary geology of the Cobden area, southern Ontario | 50000 |
| M2418 | 1978 | Geological highway map, southern Ontario | 800000 |
| P2356 | 1980 | Geological series, Pembroke area, eastern part, southern Ontario | 63360 |
| M2578 | 1992 | Tectonic assemblages of Ontario, southern sheet | 1000000 |
| M2184 | 1969 | Sand and gravel pits in southern Ontario 1967-1968 | 1013760 |
| Publication | Year | Title |
|---|---|---|
| MRD219 | 2007 | Paleozoic Geology of Southern Ontario |
| MRD298 | 2012 | Ontario Rhyolite Database-Northwestern Ontario and the Grenville Province |
| MRD018 | 1991 | Ternary Plots Using Lotus 1-2-3 |
| MRD022 | 1996 | Grade-Tonnage Data for the Mineral Deposits Models Described in OFR 5945 |
| MRD037 | 1998 | Ontario Geological Survey Poster Displays - PDAC March 1998 |
| MRD075 | 2001 | Geochronology Data for Ontario |
| MRD086 | 2001 | A Compilation of References for Kimberlite, Diamond and Related Topics |
| MRD100 | 2002 | Magmatic Ni-Cu +/- PGE Occurrences and Mafic-Ultramafic Bodies in Ontario |
| MRD101 | 2003 | Summary of Clinopyroxene Data |
| MRD126-REV1 | 2011 | 1:250 000 Scale Bedrock Geology of Ontario |
| MRD134 | 2004 | Detectability of Mineral Deposits with Airborne Gravity Gradiometry |
| MRD138 | 2004 | Airborne Hyperspectral Surface Mapping over Exposed and Covered Mineral Belts in Ontario |
| MRD139 | 2004 | Demonstration Surveys of the Distributed Acquisition (MT/IP) Method Earth Imaging Technology |
| MRD142 | 2004 | Lineament Extraction from Digital Elevation Model (DEM) for the Province of Ontario |
| MRD153 | 2005 | Ontario Geochemistry and Indicator Mineral Database |
| MRD164 | 2005 | Three Dimensional Surficial Geochemistry |
| MRD165 | 2005 | Use of a Soil Gas Hydrocarbon Technique to Differentiate Barren Graphitic and Sulphidic Conductors from Ore-Bearing Conductors |
| MRD166 | 2005 | Gedex Airborne Gravity Gradiometer (AGG) System |
| MRD169 | 2005 | Development of a High Bandwidth Frequency Domain EM System |
| MRD170 | 2005 | Geochemical Detection of Disseminated Palladium Mineralization in Ontario |
| MRD172 | 2005 | Development of Methods and Technology for the Discovery of New Resources Around Existing Mine Infrastructure |
| MRD175 | 2005 | Downhole Seismic Imaging Method: A New Tool for Deep Mineral Exploration |
| MRD176 | 2005 | Development and Demonstration of Novel Field-Portable Sample Preparation Methods for On-Site Geochemical Analysis |
| MRD177 | 2005 | Detectability of Mineral Deposits With Potential Field Methods |
| MRD178 | 2005 | Development and Evaluation of a 3D Vector Orientation Software Illustrated With Triaxial Gradient Magnetic Data |
| MRD179 | 2005 | Development of a Relational Physical Rock Property Database |
| MRD181 | 2005 | Detectability of Mineral Deposits With Electrical Resistivity and Induced Polarization Methods |
| MRD183 | 2006 | Development of a New Helicopter TEM System for Mineral Exploration |
| MRD185 | 2005 | A New Aircraft Compensation System for Magnetic Terrains |
| MRD216 | 2007 | Geology of the Canadian Shield in Ontario: An Update |
| MRD249 | 1987 | Whole-Rock Geochemistry of Komatiitic and Ultramafic Rocks: Data from the Komatiite Database Project |
| MRD250 | 1993 | Data from the PETROCH Lithogeochemical Database |
| MRD252 | 1995 | Digital Bedrock Mapping Symbols |
| MRD253 | 2000 | Digital Line Standards for Maps |
| MRD269 | 2010 | Abstracts, 11th International Platinum Symposium, 21-24 June 2010, Sudbury, Ontario, Canada |
| MRD270 | 1989 | OGS FIELDLOG (circa 1989) - Software for Geologists |
| MRD371 | 2018 | Ontario Specific Gravity Data for Bedrock Samples Acquired from 1970 to 2014 |
| GDS1035 | 2003 | Single Master Gravity and Aeromagnetic Data for Ontario, ASCII, Excel and Access formats. |
| GDS1036 | 2003 | Single Master Gravity and Aeromagnetic Data for Ontario, Geosoft Format |
| MRD286 | 2011 | Geological, Geochemical and Geophysical Data Related to the Zinc Scoping Project, Grenville Province |
| MRD254 | 2002 | Industrial Mineral Assessment and Sampling of Mica in Central and Eastern Ontario: Testing Results |
| GeochrON | 2019 | Geochronology Inventory of Ontario2019 |
| ARO | 2021 | Aggregate Resources of Ontario (ARO2020) |
| MRD297 | 2012 | Aggregate Test Results for Various Rock Types in Ontario |
| MRD207 | 2006 | Bedrock Topography and Overburden Thickness Mapping, Southern Ontario |
| MRD228 | 2007 | Physiography of Southern Ontario |
| GDS1037-REV | 2017 | Ontario Airborne Geophysical Surveys, Magnetic Data, Grid Data (ASCII and Geosoft Formats), Magnetic Supergrids |
| MRD323 | 2017 | Geological, Geochemical, Geochronological and Geophysical Data from the Cobden Area, Grenville Province |
| GDS1074 | 2014 | Ontario Airborne Geophysical Surveys, Magnetic and Gamma-Ray Spectrometric, Grid and Profile Data (ASCII and Geosoft Formats) and Vector Data, Renfrew Area |
| GRS005 | 2008 | Karst of Southern Ontario and Manitoulin Island |
| MRD302 | 2012 | Preliminary Data Release, Southern Ontario Stream Sediment Geochemistry Survey |
| MRD273-REV2 | 2019 | Ontario Precambrian Bedrock Magnetic Susceptibility Geodatabase for 2001 to 2017 |
| MRD204 | 2006 | An Updated Guide to the Subsurface Paleozoic Stratigraphy of Southern Ontario |
| MRD115 | 2002 | Geological and Lithogeochemical Data from Mafic-Ultramafic Bodies in Ontario as a Guide to Exploration for Platinum Group Element (PGE) Deposits: Operation Treasure Hunt |
| MRD128-REV | 2010 | Surficial Geology of Southern Ontario |
| EDS022 | 1993 | Topographic Base Map: Seamless Coverage of the Province of Ontario |
| EDS006-REV | 2000 | Bedrock Geology, Seamless Coverage of the Province of Ontario |
| EDS011 | 1993 | Tectonic Assemblages, Seamless Coverage of the Province of Ontario |
| EDS012 | 2004 | Townships and Unorganized Area Fabric for Ontario |
| EDS013-REV1 | 2005 | Ontario Drill Hole Database--December 2005 Release |
| EDS014-REV | 2000 | Quaternary Geology, Seamless Coverage of the Province of Ontario |
| MRD395 | 2021 | Pyrrhotite Distribution in Ontario: Near-Surface Occurrences and Discussion of Deleterious Effects in Concrete |
| ODHD | 2016 | Ontario Drill Hole Database |
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For detailed information regarding geoscience data in this area please contact the Southern Ontario District Resident Geologist Office.