Y level for Copper and tin ores

[WaterPhoenix]

Copper and tin ores are pretty rare where i mine.
What Y levels do they spawn?
BTW I'm using the direwolf20 modpack.
Thanks!

 

[NTaylor]

If you go into the feed the beast folder and look at the configs for thermal expansion (in a folder called cofh) it tells you where they spawn, from mine it says copper at 40-75 and tin at 20-55

 

[WaterPhoenix]

If you go into the feed the beast folder and look at the configs for thermal expansion (in a folder called cofh) it tells you where they spawn, from mine it says copper at 40-75 and tin at 20-55

so i should mine for them at around Y level 30?

 

[ratchet freak]

if you want both Y 40 to 55 will do