The HAWAII MR1 is a shallow towed sidescan sonar system that collects digital bathymetry and acoustic imagery data in all ocean depths. MR1 is portable, and can be deployed by the Hawai Mapping Research Group from research or survey vessels anywhere in the world. With acoustic imagery swaths up to 25 km wide and a survey speed of 9 knots, MR1 can image up to 415 square kilometers per hour. This high survey rate, along with MR1's high resolution, make it an ideal wide-area seafloor survey tool.