Why is the area east of goldengrove, north of the mander, south of the blackwater rush so bare? Any idea what is there? Do the Rowans rule all of it as part of the Northmarch? Any idea where the Osgrey territory is with regards to that area? Is it in there?

Well, keep in mind, we have no idea where a lot of important Reach houses are from – the Roxtons of the Ring, the Shermers of Smithyton, the Vrywels of Darkdell, etc. – so it’s quite possible they’re from that region.

IMO, the Northmarch applies to the border region between the Reach and the Westerlands, which would suggest that the Osgrey lands are to the west of Goldengrove, probably between Old Oak and Highgarden.