The US Army had 1:50,000 maps of just about every place on earth (mild hyperbole). The link below is the index page for its maps of Poland, C/O the University of Texas. If you click back to the site's main index, there are maps for nearly every place else.
https://maps.lib.utexas.edu/maps/ams/poland_100k/
According to this site, Soviet military maps of Poland (and other East Bloc) countries are better (more accurate, detailed, etc.).
https://sciendo.com/it/article/10.2478/mgrsd-2018-0034
That tracks, as Poland was essentially under Soviet occupation from 1945-1991.
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