I've tried everything I can including all the possible projection transformations....these lng, lat's make no sense.
Here is a sample coord with its disclosed mapping. The point is in British Columbia, Canada (I'm mapping the BC Wildfires presently underway).
(1302838.303, 517054.973) ----> EPSG_4326 - WGS84
I'm trying to get this to Google Maps projection and plotted....which I know is EPSG 3857.
Here is the source of the data, you can see that they have an actual Google Map with this data plotted, so it's not incorrect. They even show the
"Extent: Latitude: 48.0° to 60.0°, Longitude: -139.5° to -113.5°"....but those coordinates make no sense. I even tried every possible conversion on the epsg.io Transform coordinates tool (http://epsg.io/transform#s_srs=4326&t_srs=3857) and got nowhere.