A re-creation or model, but it sounds familiar - and looks familiar too. Anyone who frequents "Rock Piles" might comment about what looks alot like a Manitou Stone in the center of the pile.
"Some pohaku were known as ko'a (fishing shrines), having been used to locate special fishing grounds. A ku'ula was a smaller stone said to hold a spirit that helped the fisherman. The ku'ula was said to speak to the fisherman in his dreams, directing him to finding the location of the stone itself, and then if well cared for the fisherman would then be rewarded with good fishing and a heathy life. Jagged or pourous stones were considered female, smooth finer grained stones, male. Usually dark stones were male, lighter were female..."