diff --git a/src/lang/english.txt b/src/lang/english.txt
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -1084,6 +1084,7 @@ STR_TERRAIN_TYPE_VERY_FLAT              
 STR_TERRAIN_TYPE_FLAT                                           :Flat
 STR_TERRAIN_TYPE_HILLY                                          :Hilly
 STR_TERRAIN_TYPE_MOUNTAINOUS                                    :Mountainous
+STR_TERRAIN_TYPE_ALPINIST                                       :Alpinist
 
 STR_CITY_APPROVAL_PERMISSIVE                                    :Permissive
 STR_CITY_APPROVAL_TOLERANT                                      :Tolerant