If you start up Google Maps, select the satellite view, and paste in these coordinates, you should be able to zoom in and see where we start. See if you can find the Hanbury River and follow it to its junction with the Thelon. Its like solving a maze puzzle. Along the way, you should see some interesting features, such as white sand dunes and eskers. You will also see a lot of lakes. Its going to be an interesting trip and an interesting navigational challenge.
The end of our trip, at Baker Lake, is at the following coordinates: