Came across this Medicine Wheel aka medical aid aka navigational aid along the trail on the south side of the river. In the old days here if you were lost in the wilderness without a direction home things could get unhealthy for you quite quickly. Luckily some places along the trail one might find a medicine wheel and get a heading. Often these stone structures were left close to a settlement of one kind or another. I didn't verify with a compass but the four points of the compass on the medicine wheel / circle seem to align with True North if not actual Magnetic North.