SLB Sam is hiding...can you figure out where he is based on our clues?

1.  With a population of around 60,000 people, it is the least densely populated country in the world.

2.  Its flag is red and white.

3.  It's name includes one of the colors formed by mixing two primary colors.

4.  It is the world's largest island, 75% of which is covered by ice.

(answer)

Greenland