Locator Map for Colonies of Glass Sponges (IMAGE) University of Washington Caption The box shows the approximately 2-square-mile area 30 miles west of Grays Harbor where University of Washington scientists, on an expedition funded by the UW Washington Sea Grant and School of Oceanography, discovered both large colonies of glass sponges and copious amounts of methane flowing from the seafloor. Credit University of Washington Usage Restrictions Credit line required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.