 This puts Selchenbach within the Saar-Blies drainage basin, with the mountains east of the village marking the watershed between this and the Glan-Nahe drainage basin on the other side.The heights on either side of the valley rise to more than 400 m above sea level; the greatest elevation is the Eichelberg at 465 m above sea level.A major contiguous forested area stretches to the village's north (the Schachenwald).