Yinyuanshi Rock (Female Rock) is another famous landmark in Danxiashan, renowned alongside Yangyuanshi Rock. It is named for its striking resemblance to female genitalia. Located on the northeast side of Xianglonghu Lake, it stands 10.3 meters tall, 4.8 meters wide, and 4.3 meters deep. Inside, there is a naturally formed vertical cave that is 3 meters high and 5 to 30 centimeters wide. Its formation is related to a vertical crack in the rock layers. At the lower part of Yinyuanshi Rock, there is a vertical crack, which, due to the action of water and weathering, continually eroded the rock layers near the crack, causing it to widen and deepen, ultimately forming the vertical internal cave.
