ens , ▁the ▁channel ▁is ▁unus ually ▁elev ated ▁compared ▁to ▁the ▁neighbor ing ▁banks , ▁as ▁a ▁result ▁of ▁min ing ▁de press ions . ▁ ▁The ▁De û le ▁flows ▁through ▁the ▁depart ments ▁of ▁Pas - de - Cal ais ▁and ▁Nord , ▁and ▁the ▁towns ▁of ▁L ens , ▁Wing les , ▁Lo os , ▁L ille , ▁W am bre ch ies ▁and ▁Qu es no y - sur - De û le , ▁before ▁it ▁flows ▁into ▁the ▁L ys ▁at ▁De û l ém ont . ▁ ▁The ▁De û le ▁does ▁not ▁yet ▁profit ▁from ▁a ▁Sch éma ▁d ' am én agement ▁et ▁de ▁gestion ▁des ▁e aux . ▁ ▁References ▁http :// www . ge oport ail . fr ▁The ▁Canal ▁de ▁la ▁De û le ▁at ▁the ▁Sand re ▁database ▁The ▁Canal ▁de ▁L ens ▁at ▁the ▁Sand re ▁database ▁The ▁Sou chez ▁at ▁the ▁Sand re ▁database ▁ ▁External ▁links ▁ ▁https :// web . archive . org / web / 2 0 0 3 0 9 1 0 1 1 5 6 3 2 / http :// www . eau - art ois - pic ard ie . fr / ed ition / mag azine / cc 3 0 / et ude . htm ▁( in ▁French ) ▁ ▁Category : R ivers ▁of ▁France ▁Category : R ivers ▁of ▁Nord ▁( F rench ▁department ) ▁Category : R ivers ▁of ▁the ▁Pas - de - Cal ais ▁Category :