Satellite imagery (e.g., Google Earth) of the island shows three X-shaped figures and one Y-shaped figure in its northern half, built out of metal shipping containers.
The individuals in the NOAA image are adults of 2 cm (0.75 in) living on rock surfaces at a hydrothermal vent at the East Diamante seamount, which is westsouthwest of the small island of Farallon de Medinilla in the Southern Seamount Province of the Mariana Islands.