-#mg_valleys_spflags = altitude_chill,cliffs,humid_rivers,nofast,rugged
-# "altitude_chill" makes higher elevations colder, which may cause biome issues.
-# "fast" produces softer terrain, more quickly
-# "humid_rivers" modifies the humidity around rivers and in areas where water would tend to pool. It may interfere with delicately adjusted biomes.
-# "rugged" and "cliffs" do nothing unless "fast" is enabled
-#
-#mg_valleys_altitude_chill = 90 # the altitude at which temperature drops by 20C
-#mg_valleys_cave_water_max_height = 31000 # max altitude of water in caves
-#mg_valleys_humidity = 50 # the average humidity
-#mg_valleys_humidity_break_point = 65 # The highest humidity around rivers in otherwise dry areas
-#mg_valleys_lava_max_height = 0 # maximum altitude of lava
-#mg_valleys_river_depth = 4 # how deep to make rivers
-#mg_valleys_river_size = 5 # how wide to make rivers
-#mg_valleys_temperature = 50 # the average temperature
-#mg_valleys_water_features = 3 # how often water occurs in caves (0-10)
-#
-#mg_valleys_np_cliffs = 0, 1, (750, 750, 750), 8445, 5, 1.0, 2.0
-#mg_valleys_np_corr = 0, 1, (40, 40, 40), -3536, 4, 1.0, 2.0
-#mg_valleys_np_filler_depth = 0, 1.2, (256, 256, 256), 1605, 3, 0.5, 2.0
-#
-# River noise -- rivers occur close to zero
-#mg_valleys_np_rivers = 0, 1, (256, 256, 256), -6050, 5, 0.6, 2.0
-#
-#mg_valleys_np_simple_caves_1 = 0, 1, v3f(64, 64, 64), -8402, 3, 0.5, 2.0
-#mg_valleys_np_simple_caves_2 = 0, 1, v3f(64, 64, 64), 3944, 3, 0.5, 2.0
-#
-# Base terrain height
-#mg_valleys_np_terrain_height = -10, 50, (1024, 1024, 1024), 5202, 6, 0.4, 2.0
-#
-# Raises terrain to make valleys around the rivers
-#mg_valleys_np_valley_depth = 5, 4, (512, 512, 512), -1914, 1, 1.0, 2.0
-#
-# Slope and fill work together to modify the heights
-#mg_valleys_np_inter_valley_fill = 0, 1, (256, 512, 256), 1993, 6, 0.8, 2.0
-#mg_valleys_np_inter_valley_slope = 0.5, 0.5, (128, 128, 128), 746, 1, 1.0, 2.0
-#
-# Amplifies the valleys
-#mg_valleys_np_valley_profile = 0.6, 0.5, (512, 512, 512), 777, 1, 1.0, 2.0
+##### General
+
+# Map generation attributes specific to Mapgen Valleys.
+# 'altitude_chill' makes higher elevations colder, which may cause biome issues.
+# 'humid_rivers' modifies the humidity around rivers and in areas where water would tend to pool,
+# it may interfere with delicately adjusted biomes.
+# The default flags set in the engine are: altitude_chill, humid_rivers
+# The flags string modifies the engine defaults.
+# Flags that are not specified in the flag string are not modified from the default.
+# Flags starting with 'no' are used to explicitly disable them.
+# type: flags possible values: altitude_chill, noaltitude_chill, humid_rivers, nohumid_rivers
+# mg_valleys_spflags = altitude_chill,humid_rivers
+
+# The altitude at which temperature drops by 20C
+# type: int
+# mg_valleys_altitude_chill = 90
+
+# Depth below which you'll find large caves.
+# type: int
+# mg_valleys_large_cave_depth = -33
+
+# Creates unpredictable lava features in caves.
+# These can make mining difficult. Zero disables them. (0-10)
+# type: int
+# mg_valleys_lava_features = 0
+
+# Depth below which you'll find massive caves.
+# type: int
+# mg_valleys_massive_cave_depth = -256
+
+# How deep to make rivers
+# type: int
+# mg_valleys_river_depth = 4
+
+# How wide to make rivers
+# type: int
+# mg_valleys_river_size = 5
+
+# Creates unpredictable water features in caves.
+# These can make mining difficult. Zero disables them. (0-10)
+# type: int
+# mg_valleys_water_features = 0
+
+##### Noises
+
+# Caves and tunnels form at the intersection of the two noises
+# type: noise_params
+# mg_valleys_np_cave1 = 0, 12, (100, 100, 100), 52534, 4, 0.5, 2.0
+
+# Caves and tunnels form at the intersection of the two noises
+# type: noise_params
+# mg_valleys_np_cave2 = 0, 12, (100, 100, 100), 10325, 4, 0.5, 2.0
+
+# The depth of dirt or other filler
+# type: noise_params
+# mg_valleys_np_filler_depth = 0, 1.2, (256, 256, 256), 1605, 3, 0.5, 2.0
+
+# Massive caves form here.
+# type: noise_params
+# mg_valleys_np_massive_caves = 0, 1, (768, 256, 768), 59033, 6, 0.63, 2.0
+
+# River noise -- rivers occur close to zero
+# type: noise_params
+# mg_valleys_np_rivers = 0, 1, (256, 256, 256), -6050, 5, 0.6, 2.0
+
+# Base terrain height
+# type: noise_params
+# mg_valleys_np_terrain_height = -10, 50, (1024, 1024, 1024), 5202, 6, 0.4, 2.0
+
+# Raises terrain to make valleys around the rivers
+# type: noise_params
+# mg_valleys_np_valley_depth = 5, 4, (512, 512, 512), -1914, 1, 1.0, 2.0
+
+# Slope and fill work together to modify the heights
+# type: noise_params
+# mg_valleys_np_inter_valley_fill = 0, 1, (256, 512, 256), 1993, 6, 0.8, 2.0
+
+# Amplifies the valleys
+# type: noise_params
+# mg_valleys_np_valley_profile = 0.6, 0.5, (512, 512, 512), 777, 1, 1.0, 2.0
+
+# Slope and fill work together to modify the heights
+# type: noise_params
+# mg_valleys_np_inter_valley_slope = 0.5, 0.5, (128, 128, 128), 746, 1, 1.0, 2.0