Shipwreck of 60-foot, single-masted sloop, c1830, found in Lake Michigan March 31, 2011 at 3:23 pm Robert Zimmerman Points of Information Shipwreck of 60-foot, single-masted sloop from 1830s found in Lake Michigan. Leave a comment 1830s, archeology, engineering, Lake Michigan, sailing, science, shipwreck, sloop, wreck diving
