Search
Menu
Home
Sources
About
Contacts
La Porte-du-Der
La
Porte-du-Der
is a
commune
in the
Haute-Marne
department
of
northeastern
France
. The commune was
established
on
1 January
2016
and consists of the former
communes
of
Montier-en-Der
and
Robert-Magny
.
