Very early on, Mike Bartholomy with the contributions of many barflies created a set of topographic maps which inset the Ring of Fire into the Thuringian landscape using USGS and German topographic maps.  While Mike’s website is gone, his work persists here. 

Reference Datum for combined Mannginton/Thuringia topographic maps

930ft in the Mannington Map is defined to be the same altitude as 205m in the Thuringia map. The trip through space and time has deposited Grantville 78.5m lower in elevation than they started according to the map. (The Mannington portion of the map is labeled in feet and the Thuringia map is in meters.)

The first two sets of maps have changes to the maps which are not a part of the original USGS or German maps. The elementary and high schools have been manually drawn into the maps. A rail line has been added to the power plant — the significant change is that a hill was cut-through to allow for a reasonable grade. If the power plant isn’t where I speculate then the rail line will be removed. (This is easy.) The oil wells have been removed and so have the oil pumping stations because Eric says they aren’t there.

The RoF circle in these maps is 10144 meters or 6.3 miles in diameter. Really, it worked best I wasn’t just trying to get more back in 1632 and all Eric really says is that the RoF is about 6 miles in diameter. I varied the RoF both smaller and larger while trying to determine this. Another little tid-bit is that there appear to be 24 structures which will be flooded by the forming lakes. Most of the lakes won’t form very quickly since there aren’t external streams feeding them. Schwarza falls is 30-35 feet high.

The large maps are full-resolution cut-outs from a much larger map of Thuringia which I have been using. The large Mannington map is all of the data which I have spliced together. If you’re interested in getting the full resolution Thuringia map or an image not lossy-compressed send me a message.

The source data for the Thuringia topographic map before it was joined is available here. (46.0MB) I don’t recommend opening the topo.html file contained within the archive unless you have a system with about a gigabyte of RAM and lots of time to wait. Here is an index showing what numbers represent what areas:

Here are the URLs for where the maps come from: Mannington Thuringia

Map Name Small Medium Large
Water Barriers and Highlighted Items + more of Thuringia 9.6MB 4125×4125 31.1MB 8250×8250 (Too big for JPEG.)
Water Barriers and Highlighted Items 2.1MB 1500×2250 7.5MB 3000×4500 22.2MB 6000×9000
Water Barriers without Highlighted Items 2.1MB 1500×2250 7.4MB 3000×4500 22.1MB 6000×9000
Thuringia with superimposed Mannington 2.1MB 1500×2250 7.6MB 3000×4500 22.6MB 6000×9000
Thuringia Topographic Map 2.0MB 1500×2250 6.2MB 3000×4500 16.3MB 6000×9000
Mannington Topographic Map 1.8MB 1500×1875 7.7MB 3000×3750 28.3MB 6000×7500
Europe (NASA 1km/pixel) 844KB 1500×2250 3.0MB 3000×4500 12.7MB 6000×9000

John Biel tracked down the info on the airfield marked on the maps OTL:
Name: Rudoltstadt Grosc
Country: Germany
Style: Airport with Grass Runway
Elevation: 469 meters
Direction: 70
Length: 800 meters
Frequency: 122.600
Latitude: N50d43m58s
Longitude: E011d14m10s

3D Transformations of the maps by Gorg Huff

3D Movie 12.3MB QuickTime MOV
View from North 4.1MB 4090×3272
View from West 4.0MB 4090×3272
View from East 4.0MB 4090×3272
View from South 4.0MB 4090×3272