Tomenable
Elite member
- Messages
- 5,419
- Reaction score
- 1,337
- Points
- 113
- Location
- Poland
- Ethnic group
- Polish
- Y-DNA haplogroup
- R1b-L617
- mtDNA haplogroup
- W6a
The same map but in worse quality (black-and-white) can be found here on page 122:
http://docplayer.pl/57273906-Instytut-kaszubski-acta-cassubiana-tom-xvii.html
Kartuzy is called "the capital of Kashubia" and Wejherowo-Reda-Rumia is the "Kashubian Tri-City":
https://en.wikipedia.org/wiki/Kashubian_Tricity
The same data as in the map from the OP is in the table below but only by county, not by gmina:
