So basically, here are my thoughts how we can tackle with this area, without putting too much work in it and still making it a plausible place for wandering player. If that's okay with you, I'd like to grab Hammerfell cells adjacent to my 28 claim already and start wrapping it up right away. Roerich, do you still have this Dwemer outpost file somewhere? I could try to join it in.
Anyway, my proposals:
1. I propose we create a dummy region "Hammerfell, Dragonfields" in all cells past Aldkarth border fort, mesa near Karthwasten and Druadach mesa #1. This way players would immediatly know they are not in a supported area anymore. Plus, there already was "Hammerfell" region in last year's main exterior file, with some nice dirt cells, but I think we should rename that region to follow our naming convention, so it's composed of two elements. That region would be 3-5 cells wide, with grass disappearing gradually and dirt taking it's place. Eventually it would end with a wall of Hammerfell sightblocking rocks, in which a road to Jehenna would disappear behind Hammerfell border fort. These big rocks can supposedly be a foreland of Dragontail Mountains, but we shouldn't overthink them. They are there just to block distant view, period.
[hsimg=]
http://i.imgur.com/Ub4p5F5.jpg[/hsimg]
Edit: the transistion between dirt and big rocks areas would be more smooth and curved than shown here, of course,
Terrain:
From what I imagined, this region can be considered a middle ground between Aldkarth and dirty Druadachs, with some stains of Hammerfell dirt and rocks too, that gradually would become dominant. There are more trees here than in Druadachs, to live up to it's reputation of a woody region, and far more dirt than in Aldkarth area. Literally no "clean" Reach grass texture, but a dirt variant of it in grassy places. Other than that, rocky dirt_04 and dirt_03 are dominating. There are some overgrown rocks and sudden terrain edges too - overall this area should feel quite rough, like Druadachs.
Weather:
Sunny 40
Cloudy 20
Overcast 20
Foggy 20
Container plants:
Like Aldkarth, but less apples and more palms and also less witherwheats and more persarines
- I'm not really sure on it, but maybe taking advantage of common data, there can be some sparse aloe vera plants growing in a dry part of this region too? On one hand, such trans-provinsional modding is why the merge was started in a first place, but then, as it's not really a full-fleshed and fully supported region then I'm unsure if it's reasonable to give it unique plants, that might lure the player.
Grass:
Sky_Flora_Grass_Dry_01_ starts to appear just behind Skyrim's border fort, and it's number increase gradually. Eventually, it fully supersedes it's green counterpart. Shrubs and ferns can be encountered in whole area.
Trees:
Leafy Reach trees 1&2 and Reach pine trees.
Close to Skyrim's border, roughly 2/3 of leafy trees should be dry or dead, and this numbers should increase even more when going further south. At the feet of sightblocker rocks there should be only dry or plain trees. Likewise, less and less pine trees as you are leaving Skyrim.
Creatures:
Like Aldkarth. Also many passive goats. There should be a buffer zone of one cell or so on a province border, where there would be only passive animals to be met, so the player won't be accidently dragged outside Skyrim's territory
Dungeons:
Nope
Points of interest:
- some Redguard ruins here and there (fort and civil ones), all neglected and blended into the landscape
- a Rourken outpost or two (we have one already and another one, closer to a border, in the "desert" part should be fine too. I actually have an idea for it already)
- small bandit camp, with bandits in Westly's turbans from PC data
No interiors.
2. To make our lore right, this Dragonfields region might include cells around Dragonstar with the city itself too; that is excluding nearby Druadach mesas and a canyon. I haven't really started working on a landscape in this claim, so it would be easy to take care of. Also, inserts of Hammerfell rocks/dirts should be much more subtle there, if any at all. I'll see if I can make it right. On the other hand, I see more trees around the city, compared to the Jehenna-Karthwasten border, could work here, maybe even a small forest.
Some screens to tease, showing how currently this area looks like:
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http://i.imgur.com/gOMXT9I.png[/hsimg] [hsimg=]
http://i.imgur.com/vdYFEQl.png[/hsimg] [hsimg=]
http://i.imgur.com/9DTbR7V.png[/hsimg] [hsimg=]
http://i.imgur.com/7vYtN9Q.png[/hsimg]
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http://i.imgur.com/gc3Rn7X.png[/hsimg] [hsimg=]
http://i.imgur.com/NtJ6L34.png[/hsimg] [hsimg=]
http://i.imgur.com/Ssu5HTQ.png[/hsimg]
I'll try to rearrange this mesa though, removing at least those bigger rocks and avoiding blending two rock types together.
I'll finish claim 28 first then, sticking to what we've agreed upon before, and we'll see later, as you said.
Eh, I just can't come up with a name I'd find satisfactory 
