Robert Smithson’s Spiral Jetty in the Great Salt Lake is an awe-inspiring earthwork that can only sometimes be seen. Most often it is hidden under a sea of salt water with just the hint of waves rippling over the spiral basalt structure.

Errata on the original PDF: Cast on 152 stitches instead of 162. Later PDFs will have the correction.

Update:
Errata on the errata: Ha ha ha….just kidding. I was right the first time. It really is 162 stitches because after purling the first row on the pentagon, you immediately start row 1 and decrease 2 stitches per triangle. So, the pdf is back to what it was the first time. Thank you to all you knitters out there catching my errata.