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Mining Claims Map — Ontario

To create a mining claims map for Ontario, import your ON claims or data as GeoJSON, assign the appropriate layer role for automatic styling, set the Light or Satellite basemap, and export as PNG or PDF. The entire process takes 15–30 minutes with no GIS experience required.

About Mining in Ontario

Ontario is the largest gold producer in Canada and hosts the prolific Abitibi Greenstone Belt, one of the most mineralized geological terranes on Earth.

Key minerals: gold, nickel, copper, zinc, silver, platinum group elements. Notable deposits: Detour Lake, Macassa, Timmins Gold Camp, Sudbury Basin. Mining districts: Timmins-Porcupine, Kirkland Lake, Red Lake, Abitibi Greenstone Belt.

The Ontario Ministry of Mines administers mineral rights in Ontario. Claim data is accessible through Ontario Mineral Lands Administration System (MLAS).

What is a Mining Claims Map?

A mining claims map shows the boundaries of mineral tenures, staked claims, and licence areas overlaid on a geographic basemap. It is the most commonly required map in junior mining and exploration — used in NI 43-101 technical reports, investor decks, news releases, and property acquisition packages.

How to Create a Mining Claims Map for Ontario

  1. Import your claims data as a GeoJSON or CSV file
  2. Assign the Claims layer role to apply standard styling automatically
  3. Add roads and water layers for geographic context
  4. Select a basemap — Light for technical reports, Satellite for investor decks
  5. Configure the title block with project name, company, and map date
  6. Upload your company logo
  7. Set the export ratio and frame your map
  8. Export as PNG (presentations) or PDF (reports)

Recommended Settings for Ontario

  • Basemap: Light or Satellite
  • Design theme: Investor — Navy & White or Technical — Sharp Borders
  • Export format: PNG at 2× for investor presentations, PDF (Letter or A4) for NI 43-101 reports
  • Coordinate system: Ensure source data is in WGS84 (EPSG:4326)

Common Use Cases in Ontario

  • NI 43-101 technical reports
  • Investor presentations
  • News release figures
  • Property acquisition packages
  • Regulatory filings

Frequently Asked Questions

What file format do I need for Ontario mineral claims data?
Ontario mineral claims boundaries are available from Ontario Mineral Lands Administration System (MLAS) and can typically be downloaded as Shapefiles or KML. Convert these to GeoJSON at mapshaper.org before importing into Exploration Maps.
Who regulates mineral claims in Ontario?
Mineral claims in Ontario are regulated by the Ontario Ministry of Mines. All tenure and claims data can be queried through Ontario Mineral Lands Administration System (MLAS).
What minerals are typically mapped in Ontario?
Ontario is known for its gold, nickel, copper, zinc deposits. Key producing and exploration-stage properties include Detour Lake, Macassa, Timmins Gold Camp. The main mining districts are Timmins-Porcupine, Kirkland Lake, Red Lake.
Can I export a Ontario mining claims map for an NI 43-101 report?
Yes. Exploration Maps exports PNG and PDF at 2–3× pixel ratio, suitable for inclusion in NI 43-101 technical reports as required figures. The export includes north arrow, scale bar, legend, and title block — all elements required for NI 43-101 compliance.