Messed around with the ring again and this time on some crystals forming as result of water vapor seeping out of a retaining wall and freezing upon contact with the outside air. A morning low of 18 made for ideal conditions but coverage was limited due to an overall lack of moisture. The December that wasn't rolls on as temperatures are forecast to rebound through the week.
The yellow/green object is the tip of a grass blade I held up for scale.
A little off but I figured it was worth including.