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Mostowo, Ostrołęka County
Mostowo
is a
village
in the
administrative district
of
Gmina Olszewo-Borki
, within
Ostrołęka County
,
Masovian Voivodeship
, in east-central
Poland
. It
lies
approximately
north-west
of
Olszewo-Borki
, north-west of
Ostrołęka
, and
north
of
Warsaw
.