[Ger-Poland-Volhynia] Can anyone explain this to me?

[Beth Burke]

Below is the supposed location of the death of my great-grandfather.  When I
look at this, I am totally befuddled.  Can anyone explain where this is?
Poland?  Germany?  Timbuktu?  


Here's the location:  Althütte / PL-Huta, Kreis Scharnikau (Czarnikau) /
PL-Czarnków, Posen, Deutschland


Thanks to anyone who can help me understand what/where this is.


Beth Burke
Verona, WI