Somewhere between Swampgate and Khromarium?

There an area on the map, along the river Vol where there is a section with 3 lakes and a branch of the Vol. it's an area about 26 miles in space, bordered on 3 sides (plus a little on the 4th side) with the river/lakes. It looks like a nice confined space and it's mostly grasslands (rolling hills). Unless you need a more hilly area, then there is a location to the east of the Kimmerian Stepp, it's a 26-mile grassland surrounded by hills, but it's more like a week travel.

Looking at the map, I think the peninsula to the "west" of Khromarium would be ideal. It's not the Lug but the travel to those hills would take the upper crust through it. However, I think the peninsula could be reached within a day or two of travel.

Heck, if it's a special enough of a hunt the island to the "southeast" of Khromarium and "south" of Stonebrook could be a sanctuary specifically maintained for this. The downside is having to sail to it, but hey, party barges ahoy.