Reconstruction of the Devil's Den 20-06-2018 formation
1.		Draw a circle. Draw and extend the horizontal and vertical centerlines.
2.		Construct the inscribed heptagon (regular 7-sided polygon) of circle 1, pointing up.
3.		Draw the seven diagonals of heptagon 2 from every angular point to every second angular point, as shown.
4.		Construct a circle centered at the top, and passing through the upper righthand angular point of heptagon 2.
5.		Copy circle 4 six times, to the other angular points of heptagon 2.
6.		Construct a circle centered at the righthand intersection of the horizontal centerline and circle 1, and passing through its intersection with the nearest side of heptagon 2, as shown.
7.		Construct a circle concentric to circle 1, tangent to circle 6 at the righthand side.
8.		Circles 1, 4, 5, and 7, and lines 3, are used for the final reconstruction.
9.		Remove all parts not visible within the formation itself. pdf-file
10.		Colour all areas corresponding to standing... pdf-file
11.		...or to flattened crop, and finish the reconstruction of the Devil's Den formation of 20-06-2018. pdf-file
12.	Photo courtesy the Crop Circle Connector	The final result, matched with the aerial image.
Copyright © 2018, Zef Damen, The Netherlands Personal use only, commercial use prohibited.