The exact location of the squares can be checked HERE
Codes on the Geoportal web site are consistent with the codes that appear on your form in the brackets at the surface code, eg. U-31 (14b).
They are also avaliable here /in Polish/:
The exact location of the squares can be checked HERE
Codes on the Geoportal web site are consistent with the codes that appear on your form in the brackets at the surface code, eg. U-31 (14b).
They are also avaliable here /in Polish/: