here. There aren't any stones inside the cave and the floor is stirred up, as if kids were playing there. However, the manitou and niche suggest Native spiritual or practical significance.
The cave faces east, and could have been used to observe solstice sunrises or Pleiades rises. Both summer solstice and equinox sunrises would have appeared over the crests of nearby hills.
In this same area are two other manitous. This one is 100 feet away to the northeast, also on a hill above a tumbling brook. The late afternoon sun shows it faces to the southwest.