Mark’s Threshold v2
Mark shared this on his web site in October 2019, commenting:
Threshold, the classic starting point for many a first foray into the Known World.
This has been sat around on my hard drive for a while, almost, but not quite finished. Based on the map in B1-9.
Although he had previously drawn a version of this map back in 2006, Mark drew this one again from scratch in Paint.NET. That it’s based on B1-9 rather than GAZ1 is likely due to the fact that B1-9’s map was presented in black and white, and is therefore a little easier to trace.
Fan-made Map by Mark Howard (October 2019)

This is an original map created by one of Mystara’s excellent fan cartographers. For more information on the cartographer, including a gallery of all their maps, see also Appendix M: Mappers of Mystara.
Sources
- GAZ1 The Grand Duchy of Karameikos (1987) (PDF at DriveThruRPG)
- B1-9 In Search of Adventure (1987) (PDF at DriveThruRPG)
- Threshold
Fan Sources
- Mark’s Threshold v1 (September 2006)
- Threshold at Mark’s web site (October 2019)
References
- All of Mark’s maps at the Atlas of Mystara
- Mark’s entry in Appendix M: Mappers of Mystara (upcoming)
- Mark’s author page at the Vaults of Pandius
Chronological Analysis
This is a fan-made map. It was published in October 2019. The updated Atlas version of this map is not yet available. See also Appendix C for annual chronological snapshots of the area. For the full context of this map in Mystara’s publication history, see the upcoming Let’s Map Mystara 2019.
The following lists are from the Let’s Map Mystara project. Additions are new features, introduced in this map. Revisions are changes to previously-introduced features. Hex Art & Fonts track design elements. Finally, Textual Additions are potential features found in the related text. In most cases, the Atlas adopts these textual additions into updated and chronological maps.
Under Construction! Please check back again soon for updates.









