The Blackmarsh SRD
I did this because Blackmarsh was meant as a easy to use introduction to a hexcrawl formatted setting like the Wilderlands of High Fantasy. At the time I wrote Blackmarsh, the WoHF Boxed Set was $70 which was a pretty big ask for a hobbyist not familiar with a setting formatted as a hexcrawl.
My use of open license had a benefit that I didn't foresee, namely a giving a pathway for hobbyists in other countries to translate Blackmarsh into another language. A few years back a group translated the setting into Hungarian.
Now the company La Marca del Este has adapted Blackmarsh for their Marca del Este (Eastmark) setting and translated it into Spanish.
They gave me a PDF link to share.
They also had their cartographer do their own version of my maps which looks great. Note they stated with my expanded map which incorporated Wildlands from Points of Light.
Black and White Map
Finally a color version of the above incorporating Blackmarsh into their Eastmark setting. Lots of added details. I particularly like how they added in coral reefs.
Map of Blackmarsh in Eastmark
A job well done to Pedro Gil and the rest of the La Marca del Este team.