An ancient megalith here on Hawaiʻi? That would be cool, check this out!
It is a striking feature, but it is quite the jump to claim that this is a geoglyph created by an ancient civilization.
The video explains that the feature is 120,000 years old based on the geologic datings of the lava flows on the western slope of the Kohala. Part of this dating is based on a map of the island inscribed around the compass.
I know this area fairly well, even know some of the local ranchers, I find the evidence provided by the video a bit lacking. There are more than a few real archaeological remains in the area, remains of the rich Hawaiian culture that existed in the area before western contact.
As soon as I looked at the Google satellite imagery I had a pretty good idea of what I was looking at. A few moments of research confirmed my suspicions… The pattern on the ground is a paddock system used to control cattle movements in a section of range land. I am a bit disappointed, but not really surprised.