National Geographic : 1928 Dec
A BIG MOUND TO APPEAR OVER NIGHT Falcon Island is roughly circular, with a maximum diameter of about two miles and aheight of365 feet. Photographs from J.Edward Hoffmeister THE CRATER OE FALCON ISLAND A boiling greenish-yellow lake covers the bottom of the crater. The white streaks along the sides are concentrations of sulphurous deposits. This view is from a high point on the eastern wall. The vapors are drifting over the flag station (see illustration, page 761, and text, page 764).