Original: Ã coust-Saint-Mein is a commune in the Pas-de-Calais dÃ partement in the Nord-Pas-de-Calais region of France.
Simplified: Ã coust-Saint-Mein is a commune. It is found in the region Nord-Pas-de-Calais in the Pas-de-Calais department in the north of France.