The incredible ancient star shaped drill holes of America.
What to look for when hunting star shaped drill holes in rock?
Simply, look for rock containing precision made holes in the shape of a star.
When hunting for ancient drill holes in America, look for the 5, 6, 7, and 8 pointed star shaped drill holes in rock.
(Above) Los Padres National Forrest in California has a 5-point star hole in a river boulder.
(Below) 5 point star hole in a rock from Michigan.
After heavy erosion over a long period of time the hole keeps its star appearance.
(Below) A boulder from Minnesota containing 3 star-shaped drill holes. Each drill hole has 5 points and all show signs of internal lobes.
Star shaped drill holes have internal lobes that are equally spaced. All minerals within the rock are ground away evenly with smooth cut internal walls.
(Below) 5-point star hole in Dacite rock, found in Morro Bay, CA.
Star holes are quality graded from SG-1 (Excellent) to SG-5 (Poor). The above star hole with pronounced internal lobes found in Morro Bay is graded as SG-3 (Good).
The below star hole from Missouri is graded as SG-4 (Fair).
The 2 star shaped drill holes shown below have smooth internal walls with all the minerals in the rock machined smooth. The star hole on the left was cut 8 years ago and the ancient star hole on the right was cut into rock from an unknown area in Arizona.
Some star holes will show an internal twist or spiral effect. The image below is showing star drill holes made in a large Quartz. Notice the uniformity of the star lobes as they protrude through the transparent quartz. This is ultrasonic machining with a 5-point star shaped drilling tube.
Star holes that have been protected from erosion will show cleaner cut internal lobes. Star holes that have been subjected to thousands of years of erosion will show dissolved areas within the star hole as seen in the below star hole from California.
(Above) The eroded limestone star drill hole from California still shows the shape of the drilling tube.
Star holes protected from the elements and resurfacing later will show clean cuts and a well-defined star shape with little to no signs of erosion.
The above 7-point star hole from New York (graded as SG-2) shows inward curved sides, equal spaced lobes, and was machined smoothly with no mistakes. If it was not for the star shape, we would not know how exactly these ancient drill holes were machined in pre-history.
When hunting star holes, make sure you attach a GPS coordinate to each star hole and share with others.
As we share the information, it will no longer be hidden.