Basalt log construction at Nan Madol. Each basalt log is separate column ofbasalt found in area of columnar jointing and weighs hundreds of pounds. Somelogs appear to be sufficiently large to weigh over a ton.
12/11/2018 9:57:42 AM
Photographer: Dr. James P. McVey
Affiliation: NOAA Sea Grant Program
Date: Mar-71
Location: Ponape