Convert Canadian census subdivision polygons to WKT (4326) using ogr2ogr?

Question

We've got a large dataset that is in 4326. I'd like to integrate Canadian CSD data from the statcan website into it. But the polygons are in a coordinate system that I don't recognize. Probably Canvec 3347?

For instance the polygon for Dolphin Island looks like:

POLYGON ((3847646.5171429 2694041.15714289,
3847662.23428575 2694027.20857146,
3847669.29428575 ...)

Can I convert this to 4326 to match the rest of my data? Searching for this on google yielded nothing that used ogr2ogr directly and a lot of it was >8 yrs old.

Answer 1

Use ogr2ogr to reproject vector data using something like this:

ogr2ogr -s_srs EPSG:3347 -t_srs EPSG:4326 new.shp old.shp