I had a pretty good retort typed, but I don't want to sully the OP's thread.

VarmintGuy it is far safer if you just stay in the nursing home.

To the OP, question gets asked on here about Glacier every year. Here are a couple threads that might give you some good reference info. Search functions sucks on here, but if your google-fu is better than mine you'll dig up more.

https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/14909005/1

https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/14993994/1

MAGA