Troll's secret diary
The troll's memory is failing him, to enable him to find his way home after walking the streets of Mt. Horeb, the troll leaves gold bars along the trail with codes that he uses to find his way back to his lair. You may want to drive Mt. Horeb's main street before you hunt his cache to see if the troll is still standing on his stump, if you see him or his wife it is safe to hunt his secret cache. He may be feeble minded but he is quick, and he dashes from one stump to the next to keep in front of you.
The code maybe tough for a troll but remember he is feeble minded, if you replace the decimal part of the latitude with the top number on the tag and the decimal part of the longitude with the bottom number, then you will know which trail to follow to the troll's secret diary.
Park at N43° 01.737 W 89°50.654