+#### Mapgen Valleys
+
+#mg_valleys_spflags = altitude_chill,humid_rivers
+# "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.
+#
+#mg_valleys_altitude_chill = 90 # the altitude at which temperature drops by 20C
+#mg_valleys_large_cave_depth = -33 # Depth below which you'll find large caves.
+#mg_valleys_lava_features = 0 # Creates unpredictable lava features in caves. These can make mining difficult. Zero disables them. (0-10)
+#mg_valleys_massive_cave_depth = -256 # Depth below which you'll find massive caves.
+#mg_valleys_river_depth = 4 # how deep to make rivers
+#mg_valleys_river_size = 5 # how wide to make rivers
+#mg_valleys_water_features = 0 # Creates unpredictable water features in caves. These can make mining difficult. Zero disables them. (0-10)
+#
+#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
+#
+# Caves and tunnels form at the intersection of the two noises
+#mg_valleys_np_cave1 = 0, 12, (100, 100, 100), 52534, 4, 0.5, 2.0
+#mg_valleys_np_cave2 = 0, 12, (100, 100, 100), 10325, 4, 0.5, 2.0
+#
+#mg_valleys_np_massive_caves = 0, 1, (768, 256, 768), 59033, 6, 0.63, 2 # Massive caves form here.
+#
+# 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
+