Rock in a sack

While strolling around at Grünerløkka I came across this sack with a rock in it. From distance it looked real, but when I came closer I saw it was a sculpture.

When I came home I had to google it. This sculpture is made by an artist called Anna Daniell. It´s made in bronze, and the rock is from the top of Norway´s highest mountain, Galdhøpiggen (2469 m)

Pretty cool idea !