This is one of the many famous stalagmites in Luray Caverns. It is called the Princess formation. Here's why: "A skeleton, thought to be that of a Native American
girl, found in one of the chasms, was estimated, from the current rate
of stalagmitic growth, to be not more than 500 years old. Her remains
may have slipped into the caverns after her burial hole collapsed due to
a sinkhole, although the real cause is unknown." (source)