Crested Organ Pipe #107 in Pima County, Arizona.

"Firecracker"

Close Up - One Crest

SX50_IMG_31436_mod (10-27-2020) Photo courtesy of Joe Orman

Full View - Three Crests, All Dying

SX50_IMG_31441_mod (10-27-2020) Photo courtesy of Joe Orman

Pima,
AZ. g" h'(w+w)/2
=c'(g+h+c)
= xxx Firecracker:
Joe Orman10-27-2020(w+h+d)
=? Standing
?gh(w+w)/4
=c(g+h+c)
=xxx ??(*w+h+d)
=??
?gh(w+w)/4
=c(g+h+c)
=xxx ??(*w+h+d)
=??