Ostróda is a town in northern Poland, in the historic region of Masuria. It is the seat of the Ostróda County within the Warmian-Masurian Voivodeship and has approximately 33,191 inhabitants.
Ostróda is the largest town in the western part of Masuria, and the second largest in all of Masuria after Ełk.
Wikipedia https://en.wikipedia.org/wiki/Ostróda
Coordinates 53°42'10.272" N 19°57'44.29" E