diff --git a/lib/streams/featureCodeFilterStream.js b/lib/streams/featureCodeFilterStream.js
index 21697f50..6b9b4b42 100644
--- a/lib/streams/featureCodeFilterStream.js
+++ b/lib/streams/featureCodeFilterStream.js
@@ -2,7 +2,8 @@ var filter = require('through2-filter');
 var _ = require( 'lodash' );
 
 var unwantedFcodes = [
-  'RGNE', // economic regions. consists of multiple cities and is unwanted for geocoding
+  'RGN',   // large regions like 'Northern Europe' or 'Southern California' that don't fit well in admin hierarchies
+  'RGNE',  // economic regions. consists of multiple cities and is unwanted for geocoding
   'ADM1H', // historical
   'ADM2H', // historical
   'ADM3H', // historical