diff --git a/admin/c2cgeoportal_admin/static/theme.css b/admin/c2cgeoportal_admin/static/theme.css
index e3a6cbbd0a..0cc8184b3a 100644
--- a/admin/c2cgeoportal_admin/static/theme.css
+++ b/admin/c2cgeoportal_admin/static/theme.css
@@ -45,6 +45,9 @@
 .icon-l_wmts:before {
   content: '\e011';
 }
+.icon-l_cog:before {
+  content: '\e011';
+}
 .icon-mvt:before {
   content: '\e011';
 }
diff --git a/admin/c2cgeoportal_admin/views/layertree.py b/admin/c2cgeoportal_admin/views/layertree.py
index cb6ddf64c9..0efddbae17 100644
--- a/admin/c2cgeoportal_admin/views/layertree.py
+++ b/admin/c2cgeoportal_admin/views/layertree.py
@@ -42,6 +42,7 @@
     "group": "layer_groups",
     "l_wms": "layers_wms",
     "l_wmts": "layers_wmts",
+    "l_cog": "layers_cog",
 }
 
 
diff --git a/geoportal/c2cgeoportal_geoportal/views/theme.py b/geoportal/c2cgeoportal_geoportal/views/theme.py
index e76872fe14..96d53535c9 100644
--- a/geoportal/c2cgeoportal_geoportal/views/theme.py
+++ b/geoportal/c2cgeoportal_geoportal/views/theme.py
@@ -415,7 +415,8 @@ async def _layer(
         assert time_ is not None
         assert dim is not None
 
-        errors |= dim.merge(layer, layer_info, mixed)
+        if not isinstance(layer, main.LayerCOG):
+            errors |= dim.merge(layer, layer_info, mixed)
 
         if isinstance(layer, main.LayerWMS):
             wms, wms_errors = await self._wms_layers(layer.ogc_server)