diff --git a/geometric_features/features_and_tags.json b/geometric_features/features_and_tags.json
index 30847e7a..b6e2bc8b 100644
--- a/geometric_features/features_and_tags.json
+++ b/geometric_features/features_and_tags.json
@@ -890,9 +890,6 @@
       "northGreenland3_oceanExtended": [
         "northGreenland"
       ],
-      "northGreenland4_oceanExtended": [
-        "northGreenland"
-      ],
       "northWestGreenland1_oceanExtended": [
         "northWestGreenland"
       ],