diff --git a/01.curriculum/01.physics-chemistry-biology/04.Niv4/topic.en.md b/01.curriculum/01.physics-chemistry-biology/04.Niv4/topic.en.md
deleted file mode 100644
index 01e5fa8ab..000000000
--- a/01.curriculum/01.physics-chemistry-biology/04.Niv4/topic.en.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-title: mountains
-published: true
-routable: false
-visible: false
----
-