Uses uniform distribution, min height is 40 and max height is 75 (same as Copper)
Place in config\cofh\world
Feel free to use in modpacks without giving credit, as it's just simple json. Although I don't have a problem if you do give credit :^)
NOTE: If using 1.12, make sure to use the 1.12 version of the file! It adds the crucial
"dependencies": "thermalfoundation",without which the file would not be read.