The Navy’s Indoor Ocean It’s 240 feet wide, 360 feet long, and holds over twelve million gallon of water. This is the MASK, the maneuvering and seakeeping basin at the Naval Surface Warfare Center at Carderock. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Mayan Calendar Explained – And Why The World Will Not End What Is This Mysterious Triangle Photographed in Australia? Why Is Only Half of My Nose Working? Qatar’s 2022 Five World Cup Stadiums The Fighter Jet That Shot Itself Down Could Black Holes Made Of Light Power Our Spaceships?