Is there anything more current than 1983?

The current edition, referred to as the 1983 series was produced between 1977 and 2000 using the NAD83 datum. The year of the photo each sheet was based on is recorded at the bottom of the map sheet. ...

What file formats are available for OBM?

Besides printed hard copies, OBM can be purchased as PDF (read-only), as a georeferenced raster (tiff), or in vector formats (SHP for GIS or DWG for CAD), consisting of points, lines, polygons, and an...

What is the map scale of OBM?

1:10,000 in southern Ontario, meaning each 24″ x 30″ map sheet covers 5km x 5km, or, 1:20,000 for northern Ontario, meaning each sheet covers 10km x 10km.