page_title: Slack (river)
hierarchical_section_title: Slack (river)
caption_attribution_description: Français&#160;: L'embouchure de la Slack et le fort Mahon à Ambleteuse (Pas-de-Calais).
context_page_description: The Slack is a 22-kilometre-long coastal river in the Pas-de-Calais department, in northern France.
  It rises at Hermelinghen on Mount Binôt, flows through Rinxent, Marquise, Beuvrequen, Slack and flows into the English Channel in Ambleteuse next to Fort Mahon.
context_section_description: The Slack is a 22-kilometre-long (14 mi) coastal river in the Pas-de-Calais department, in northern France.
  It rises at Hermelinghen on Mount Binôt, flows through Rinxent, Marquise, Beuvrequen, Slack (village near Ambleteuse) and flows into the English Channel in Ambleteuse next to Fort Mahon.
caption: The Slack and Fort Mahon.
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