diff --git a/src/lang/english.txt b/src/lang/english.txt
index abe367da5e..9fe9985e3f 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -1459,8 +1459,8 @@ STR_CONFIG_SETTING_VARIETY                                      :Variety distrib
 STR_CONFIG_SETTING_VARIETY_HELPTEXT                             :(TerraGenesis only) Control whether the map contains both mountainous and flat areas. Since this only makes the map flatter, other settings should be set to mountainous
 STR_CONFIG_SETTING_RIVER_AMOUNT                                 :River amount: {STRING2}
 STR_CONFIG_SETTING_RIVER_AMOUNT_HELPTEXT                        :Choose how many rivers to generate
-STR_CONFIG_SETTING_ROCKS_AMOUNT                                 :Rocks amount: {NUM}
-STR_CONFIG_SETTING_ROCKS_AMOUNT_HELPTEXT                        :Choose how many rocky patches to generate
+STR_CONFIG_SETTING_ROCKS_AMOUNT                                 :Rocks amount: {STRING}
+STR_CONFIG_SETTING_ROCKS_AMOUNT_HELPTEXT                        :Determines the size of rocky patches. High values can cover a significant portion of the map.
 STR_CONFIG_SETTING_TREE_PLACER                                  :Tree placer algorithm: {STRING2}
 STR_CONFIG_SETTING_TREE_PLACER_HELPTEXT                         :Choose the distribution of trees on the map: 'Original' plants trees uniformly scattered, 'Improved' plants them in groups
 STR_CONFIG_SETTING_TREE_PLACER_NONE                             :None
diff --git a/src/settings_type.h b/src/settings_type.h
index c3bcd00f4e..16552282b6 100644
--- a/src/settings_type.h
+++ b/src/settings_type.h
@@ -375,7 +375,7 @@ struct GameCreationSettings {
 	byte   min_river_length;                 ///< the minimum river length
 	byte   river_route_random;               ///< the amount of randomicity for the route finding
 	byte   amount_of_rivers;                 ///< the amount of rivers
-	byte   amount_of_rocks;                  ///< the amoutn of rocks
+	uint8  amount_of_rocks;                  ///< the amoutn of rocks
 };
 
 /** Settings related to construction in-game */
diff --git a/src/table/settings.ini b/src/table/settings.ini
index a69768e31c..2dfbde1624 100644
--- a/src/table/settings.ini
+++ b/src/table/settings.ini
@@ -3754,6 +3754,7 @@ strval   = STR_RIVERS_NONE
 base     = GameSettings
 var      = game_creation.amount_of_rocks
 type     = SLE_UINT8
+guiflags = SGF_NEWGAME_ONLY | SGF_SCENEDIT_TOO
 def      = 5
 min      = 1
 max      = 255