Frosted cobweb, Ophir. Temperature was sub-zero that morning - scarf or buff, gloves, thermals, thick socks, and warm puffer jacket were essentials. - Picture of Otago Central Rail Trail, Central Otago - Tripadvisor
How to Read Wind and Thermals to Get on Big Deer and Elk
Thermal - Wikipedia
Sinking Thermals: The Most Consistent Wind Direction — In Ground Blinds, LLC