(unnamed)

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(unnamed) flows into La Ternoise , which it joins at N 50° 22′ 26″, E 2° 22′ 1″ at OSM node n3327249927, and there 8 km of total upstream flows in. load it's distributaries

(unnamed) has 2 tributaries.

• Catherinette, which joins it at N 50° 22′ 26″, E 2° 22′ 7″ at OSM node n3327249215, and 4 km of total upstream flows in.
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• La Ternoise, which joins it at N 50° 22′ 30″, E 2° 22′ 20″ at OSM node n3327259074, and 3 km of total upstream flows in.
load it's tributaries