These are more of the photos I took a few days ago when it was cold. They’re all of ice on puddles in the same general area. I love it when lines like this form, but I have no idea why they do. In this set the lines were all long and exceedingly elegant.
I didn’t notice until I looked at the photo, but there’s also a line along the junction between the ice and the dirt. I’m not sure if it’s discoloured ice or just a wee ridge of dirt pushed up by the ice’s expansion.
Evidently any obstruction in the path of the forming ice gets incorporated into the design.