"I have heard that Greenland has minerals like crazy under the ice cap"
You can even dig for old buried WWII planes.
![](https://www.sensoft.ca/wp-content/uploads/2017/08/gpr-data-glacier.jpg)
"Many of you most likely know this story already, but the P-38 Glacier Girl was one of six P-38s and two B-17s that had to make an emergency landing on an icecap in Greenland on July 15th, 1942 due to inclement weather. The crews were collected unharmed and the 8 planes were left there to be eventually covered by snow and ice."
full article with many pictures