A couple hiking in the mountains of far northern Sweden found 70 pairs of shoes, all filled with butter. Officials have no idea who put the shoes there, or why.

A provincial spokesman says the buttered footwear ranges from sneakers to boots. There are even butter-filled high heels and tap shoes. Each contains about a pound of butter.

The province spokesman says they'd like to catch the person who did it and make them clean it up. He says it's going to create quite a mess when the butter starts to spoil.

Officials say they'll wait for snow, so they can get a snowmobile into the area.