This is one of a few places where this orange lichen does really well - such color!
Located atop the cliff stones of the Buffalo Jump State Park.
Oak-hornbeam woodland. At light.
Hair like ice crystal, forming on downed tree branches along Tiger Mountain Trail
From Wikipedia:
“In the year 2015, German and Swiss scientists identified the fungus Exidiopsis effusa as key to the formation of hair ice. The fungus was found on every hair ice sample examined by the researchers, and disabling the fungus with fungicide or hot water prevented hair ice formation.The fungus shapes the ice into fine hairs through an uncertain mechanism and likely stabilizes it by providing a recrystallization inhibitor similar to antifreeze proteins.
https://en.wikipedia.org/wiki/Hair_ice accessed 25 November 2019