diff --git a/mods/ra/rules/trees.yaml b/mods/ra/rules/trees.yaml
index c612a13794..710a64c7d0 100644
--- a/mods/ra/rules/trees.yaml
+++ b/mods/ra/rules/trees.yaml
@@ -173,4 +173,38 @@ BOXES08:
 BOXES09:
 	Inherits: ^Tree
 	Tooltip:
-		Name: Boxes
\ No newline at end of file
+		Name: Boxes
+
+ICE01:
+	Inherits: ^Tree
+	Building:
+		Footprint: xx xx
+		Dimensions: 2,2
+	Tooltip:
+		Name: Ice Floe
+
+ICE02:
+	Inherits: ^Tree
+	Building:
+		Footprint: x x
+		Dimensions: 1,2
+	Tooltip:
+		Name: Ice Floe
+
+ICE03:
+	Inherits: ^Tree
+	Building:
+		Footprint: xx
+		Dimensions: 2,1
+	Tooltip:
+		Name: Ice Floe
+
+ICE04:
+	Inherits: ^Tree
+	Tooltip:
+		Name: Ice Floe
+
+ICE05:
+	Inherits: ^Tree
+	Tooltip:
+		Name: Ice Floe
\ No newline at end of file