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Place a target outline or geophysical raster beside existing drilling, samples and reports.
If you have a target boundary in a GIS file, you can bring it into Explore and see which mapped drillholes fall inside or nearby. You can also add a geophysical raster, adjust its transparency and compare it with the available exploration data.
This walkthrough uses a target outline as the starting point.
For a target outline, use GeoJSON, KML, KMZ or a zipped shapefile. When preparing a shapefile ZIP, include its companion files—particularly the attribute and projection files—rather than the .shp file alone.
For imagery or geophysics, the importer lists GeoTIFF/COG, JP2 and ECW. It also supports GeoPackage and CSV/XLSX tables, although tables may require you to identify their location columns.
Know the file’s coordinate system before importing it. A file opening successfully does not, by itself, confirm that it is positioned correctly.
Open Explore, expand Custom Layers in the sidebar and select Add Layer.
Drop your file into the import dialog or click to browse. Review the detected information and any warnings, then select Continue and complete any remaining prompts for that file.
Once the layer appears in Custom Layers, click its name to move the map to its extent.
Before comparing the outline with drilling, check it against a location you can independently identify—for example, a known collar or surveyed boundary.
If the layer appears in the wrong place, check the source file’s datum, projection and zone. Don’t choose a different coordinate system simply because it makes the outline look closer to where you expect it.
Use the visibility control to switch the layer on and off. Adjust its opacity so the underlying map remains readable.
Turn on the relevant Drillholes, Surface Samples and Reports layers. Add Tenements if boundaries are relevant to your question.
Start with three checks:
Which mapped drillholes fall inside the target outline?
Where are the nearest samples and reports?
Which records need a closer look before deciding what work has already tested the target?
Open the relevant records and follow the available source links. A collar inside the outline establishes a location; you still need the hole’s depth, orientation and results to assess what it tested. Likewise, an empty patch on the map is not proof that no exploration occurred there.
For a geophysical raster, lower its opacity and switch it on and off while inspecting the same records. This makes it easier to compare an interpreted feature with the mapped evidence.
The layer is listed but invisible: Turn on its visibility, increase opacity and click its name to move to its extent.
The layer appears in the wrong location: Check the source coordinate system, including datum and zone.
A table imports but has no mapped points: Complete the location-mapping step and check the coordinate columns.
Importing stops with a warning: Read the warning and check the file and its companion files before retrying.
The import dialog reads files locally in your browser rather than uploading them. Where supported, Canetoad retains a browser copy so a layer can be reopened.
Keep your original files. Browser storage is not a backup, and clearing site data can remove locally saved content.
Open Explore and start with one layer whose location you already know.