Tucson, AZ. First spotted effervescing from a cliff by Simone Joyaux and Tom Ahern while hiking in the Saguaro National Forest a few years ago. Site revisited twice, including Jan. 12, 2016.
It's the darker, copperish dot in the middle.
Getting closer. Feel the tingle.
Simone stares in wonder.
"Time for your close-up, Implausium." African killer bees have colonized it (true).