Crested Organ Pipe #106 in Pima County, Arizona.

"Double Action"

Close Up - First Crest

SX50_IMG_31425_mod (10-27-2020) Photo courtesy of Joe Orman

Close Up - Second Crest

SX50_IMG_31431_mod (10-27-2020) Photo courtesy of Joe Orman

Pima,
AZ. g" h'(w+w)/2
=c'(g+h+c)
= xxx Double Action:
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)
=??