Idaho Historical Marker: Prehistoric Man  LbNA # 55696

Ownerdragonrider      
Placed DateSep 10 2010
CountyJerome
LocationJerome, ID
Boxes1
Found Byanimalstamper (Attempted)
Last UpdateSep 20 2012

Clues

I am doing a series of Letterboxes about Idaho's Roadside Historical Markers.
Directions:
Traveling east or west on Interstate 84, take Twinfalls-Sunvalley exit #173 to highway 93. Travel north until you come to highway 25 at blinking yellow light. Turn right on highway 25 traveling east towards Eden-Hazelton towns. From light, travel for 9.2 miles until you come to historical sign.
Clue:
The letterbox is located under a rock at the base of the post holding the sign.
Please rehide well as this is a highly traveled road.