JTR
Maps of the Known World before and after the GRoF, from the Mystara Message Board posted 24 March 2006.
Denizens of Denagoth, map from the Mystara Message Board posted 30 April 2006.
Denizens of Denagoth, gazetteer from the Mystara Message Board posted 30 April 2006 (edited by JTR).
Realm of Wendar, gazetteer from the Mystara Message Board posted 5 May 2006 (edited by JTR).
Map of the Northern Wildlands, 8 miles per hex from the Mystara Message Board posted 1 July 2006.
Northern Wildlands, gazetteer from the Mystara Message Board posted 1 July 2006 (edited by JTR).
Oltec Timeline, from the Mystara Message Board posted 29 July 2006.
Map of the Kingdom of Ghyr and Allies, 8 miles per hex from the Mystara Message Board posted 20 September 2006.
The Hidden Treasure of Ghyr, gazetteer from the Mystara Message Board posted 20 September 2006 (edited by JTR).
The Western Alliance, gazetteer from the Mystara Message Board posted 5 December 2006 (edited by JTR).
Map of the The Western Alliance, 8 miles per hex from the Mystara Message Board posted 5 December 2006.
Map of the The Kingdom of Littonia, 8 miles per hex from the Mystara Message Board posted 31 January 2007.
The Kingdom of Littonia, gazetteer from the Mystara Message Board posted 31 January 2007 (by Geoff Gander edited by JTR).
Map of the Heldannic Territories, 8 miles per hex from the Mystara Message Board posted 8 May 2007.
The Heldannic Order gazetteer from the Mystara Message Board posted 8 May 2007. (done with Colin D. Wilson)
The Duchy and Beyond: A WotI Compatible Campaign Adventure Path, from the Mystara Message Board posted 19 June 2007.
The Streets of Landfall, gazetteer from the Mystara Message Board posted 7 July 2007. (edited by JTR)
Map of Landfall and Kamminer Bay, from the Mystara Message Board posted 7 July 2007.
Map of The Streets of Landfall, 8 miles per hex from the Mystara Message Board posted 7 July 2007.
The Free City of Oceansend, gazetteer from the Mystara Message Board posted 22 November 2007. (edited by JTR)
Map of The Kingdom of Oceansend and The Norwold Coast, 8 miles per hex from the Mystara Message Board posted 22 November 2007.
Map of the Idrisian Sphere, 24 miles per hex from the Mystara Message Board posted ~ 2007.
Beyond the Final Range: The Ransarn-Vinisk Valley, map: beta version, 8 miles per hex from the Mystara Message Board posted 27 March 2008.
Ylaruam map geographic references from the Mystara Message Board posted 8 June 2008.
The Kingdom of Kaarjala, gazetteer from the Mystara Message Board posted 5 July 2008. (by Geoff Gander edited by JTR)
Map of The Kingdom of Kaarjala and the Autuasmaa Plain, 8 miles per hex from The Piazza posted 5 July 2008.
Map of The Territory of Itämaa, 8 miles per hex from The Piazza posted 5 July 2008.
The Brides of Ashton Ketch from The Piazza posted 11 September 2009.
99 Bottles of Mystaran Beer on the Wall, Mystaran beverage and food items, from the Piazza posted 17 February 2010. (contributions also by Marco Fossati, Blacky the Blackball, Cab Davidson, Mike Phillips, Geoff Gander, Giampaolo Agosta, John Walter Biles, Michael Berry, Ville Lähde, Jamie Baty, John Calvin, Ashtagon and Sean Meaney)
Thoughts on Borea from The Piazza posted 16 March 2011.
Map of the Regions of Davania from The Piazza posted 22 March 2011.
Expanding the Atruaghi pantheon from The Piazza posted 16 April 2010.
Karawenn Timeline, from The Piazza posted 27 July 2011.
GazF Halfling History, from The Piazza posted 22 November 2013.
The History of Leeha from Threshold Magazine issue 6 dated 29 December 2014.
Land of Leeha from Threshold Magazine issue 7 dated 1 April 2015.
Races of Leeha from Threshold Magazine issue 7 dated 1 April 2015.
Hail Thonia! from Threshold Magazine issue 12 dated 14 July 2016.
Also see
JTR’s World Before the Rain by Thorfinn Tait, from the Atlas of Mystara current as of 24 October 2023.
JTR’s Glacial Patterns of the Known World by Thorfinn Tait, from the Atlas of Mystara current as of 26 October 2023.
JTR’s Denagoth, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 28 October 2023.
JTR’s Northern Wildlands, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 31 October 2023.
JTR’s Ghyr, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 2 November 2023.
JTR’s Western Alliance, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 4 November 2023.
JTR’s Heldann, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 7 November 2023.
JTR’s Landfall, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 9 November 2023.
JTR’s Landfall by Thorfinn Tait, from the Atlas of Mystara current as of 11 November 2023.
JTR’s Oceansend, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 14 November 2023.
JTR’s Ransarn, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 16 November 2023.
JTR’s Kaarjala, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 18 November 2023.
JTR’s Itämaa, 8 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 21 November 2023.
JTR’s Northern Brun, 24 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 23 November 2023.
JTR’s Davania by Thorfinn Tait, from the Atlas of Mystara current as of 25 November 2023.