Index: src/lang/english.txt
===================================================================
--- src/lang/english.txt	(revisi¢n: 15116)
+++ src/lang/english.txt	(copia de trabajo)
@@ -3429,6 +3429,7 @@
 STR_NUM_1                                                       :{BLACK}{SKIP}{NUM}
 STR_NUM_2                                                       :{BLACK}{SKIP}{SKIP}{NUM}
 STR_NUM_3                                                       :{BLACK}{SKIP}{SKIP}{SKIP}{NUM}
+STR_NUM_4                                                       :{BLACK}{SKIP}{SKIP}{SKIP}{SKIP}{NUM}
 
 ########### String for New Landscape Generator
 
Index: src/genworld_gui.cpp
===================================================================
--- src/genworld_gui.cpp	(revisi¢n: 15116)
+++ src/genworld_gui.cpp	(copia de trabajo)
@@ -655,7 +655,11 @@
 	CSCEN_FLAT_LAND_HEIGHT_LABEL,
 	CSCEN_FLAT_LAND_HEIGHT_DOWN,
 	CSCEN_FLAT_LAND_HEIGHT_TEXT,
-	CSCEN_FLAT_LAND_HEIGHT_UP
+	CSCEN_FLAT_LAND_HEIGHT_UP,
+	CSCEN_SNOW_LEVEL_TEXT1,
+	CSCEN_SNOW_LEVEL_DOWN,
+	CSCEN_SNOW_LEVEL_TEXT,
+	CSCEN_SNOW_LEVEL_UP
 };
 
 
@@ -676,6 +680,11 @@
 		this->SetWidgetDisabledState(CSCEN_FLAT_LAND_HEIGHT_DOWN, _settings_newgame.game_creation.se_flat_world_height <= 0);
 		this->SetWidgetDisabledState(CSCEN_FLAT_LAND_HEIGHT_UP,   _settings_newgame.game_creation.se_flat_world_height >= MAX_TILE_HEIGHT);
 
+		/* Disable snowline if not hilly */
+		this->SetWidgetDisabledState(CSCEN_SNOW_LEVEL_TEXT, _settings_newgame.game_creation.landscape != LT_ARCTIC);
+		this->SetWidgetDisabledState(CSCEN_SNOW_LEVEL_DOWN, _settings_newgame.game_creation.snow_line_height <= 2 || _settings_newgame.game_creation.landscape != LT_ARCTIC);
+		this->SetWidgetDisabledState(CSCEN_SNOW_LEVEL_UP,   _settings_newgame.game_creation.snow_line_height >= MAX_SNOWLINE_HEIGHT || _settings_newgame.game_creation.landscape != LT_ARCTIC);
+
 		this->SetWidgetLoweredState(CSCEN_TEMPERATE, _settings_newgame.game_creation.landscape == LT_TEMPERATE);
 		this->SetWidgetLoweredState(CSCEN_ARCTIC,    _settings_newgame.game_creation.landscape == LT_ARCTIC);
 		this->SetWidgetLoweredState(CSCEN_TROPICAL,  _settings_newgame.game_creation.landscape == LT_TROPIC);
@@ -686,6 +695,7 @@
 		SetDParam(1, 1 << _settings_newgame.game_creation.map_x); // CSCEN_MAPSIZE_X_PULLDOWN
 		SetDParam(2, 1 << _settings_newgame.game_creation.map_y); // CSCEN_MAPSIZE_Y_PULLDOWN
 		SetDParam(3, _settings_newgame.game_creation.se_flat_world_height); // CSCEN_FLAT_LAND_HEIGHT_TEXT
+		SetDParam(4, _settings_newgame.game_creation.snow_line_height); // CSCEN_SNOW_LEVEL_TEXT
 
 		this->DrawWidgets();
 	}
@@ -752,6 +762,24 @@
 				SetDParam(0, _settings_newgame.game_creation.se_flat_world_height);
 				ShowQueryString(STR_CONFIG_PATCHES_INT32, STR_FLAT_WORLD_HEIGHT_QUERY_CAPT, 3, 100, this, CS_NUMERAL, QSF_NONE);
 				break;
+
+			case CSCEN_SNOW_LEVEL_DOWN:
+			case CSCEN_SNOW_LEVEL_UP: // Snow line buttons
+				/* Don't allow too fast scrolling */
+				if ((this->flags4 & WF_TIMEOUT_MASK) <= WF_TIMEOUT_TRIGGER) {
+					this->HandleButtonClick(widget);
+					this->SetDirty();
+
+					_settings_newgame.game_creation.snow_line_height = Clamp(_settings_newgame.game_creation.snow_line_height + widget - CSCEN_SNOW_LEVEL_TEXT, 2, MAX_SNOWLINE_HEIGHT);
+				}
+				_left_button_clicked = false;
+				break;
+
+			case CSCEN_SNOW_LEVEL_TEXT: // Snow line text
+				this->widget_id = CSCEN_SNOW_LEVEL_TEXT;
+				SetDParam(0, _settings_newgame.game_creation.snow_line_height);
+				ShowQueryString(STR_CONFIG_PATCHES_INT32, STR_SNOW_LINE_QUERY_CAPT, 3, 100, this, CS_NUMERAL, QSF_NONE);
+				break;
 		}
 	}
 
@@ -779,6 +807,11 @@
 					this->InvalidateWidget(CSCEN_FLAT_LAND_HEIGHT_TEXT);
 					_settings_newgame.game_creation.se_flat_world_height = Clamp(value, 0, MAX_TILE_HEIGHT);
 					break;
+
+				case CSCEN_SNOW_LEVEL_TEXT:
+					this->InvalidateWidget(CSCEN_SNOW_LEVEL_TEXT);
+					_settings_newgame.game_creation.snow_line_height = Clamp(value, 2, MAX_SNOWLINE_HEIGHT);
+					break;
 			}
 
 			this->SetDirty();
@@ -819,6 +852,13 @@
 {     WWT_IMGBTN, RESIZE_NONE, COLOUR_ORANGE, 282, 293, 131, 142, SPR_ARROW_DOWN,          STR_FLAT_WORLD_HEIGHT_DOWN},             // CSCEN_FLAT_LAND_HEIGHT_DOWN
 {    WWT_TEXTBTN, RESIZE_NONE, COLOUR_ORANGE, 294, 314, 131, 142, STR_NUM_3,               STR_NULL},                               // CSCEN_FLAT_LAND_HEIGHT_TEXT
 {     WWT_IMGBTN, RESIZE_NONE, COLOUR_ORANGE, 315, 326, 131, 142, SPR_ARROW_UP,            STR_FLAT_WORLD_HEIGHT_UP},               // CSCEN_FLAT_LAND_HEIGHT_UP
+
+/* Snow line */
+{       WWT_TEXT, RESIZE_NONE, COLOUR_ORANGE, 182, 278, 150, 160, STR_SNOW_LINE_HEIGHT,    STR_NULL},                               // CSCEN_SNOW_LEVEL_TEXT1
+{     WWT_IMGBTN, RESIZE_NONE, COLOUR_ORANGE, 282, 293, 149, 160, SPR_ARROW_DOWN,          STR_SNOW_LINE_DOWN},                     // CSCEN_SNOW_LEVEL_DOWN
+{    WWT_TEXTBTN, RESIZE_NONE, COLOUR_ORANGE, 294, 314, 149, 160, STR_NUM_4,               STR_NULL},                               // CSCEN_SNOW_LEVEL_TEXT
+{     WWT_IMGBTN, RESIZE_NONE, COLOUR_ORANGE, 315, 326, 149, 160, SPR_ARROW_UP,            STR_SNOW_LINE_UP},                       // CSCEN_SNOW_LEVEL_UP
+
 {   WIDGETS_END},
 };