Open Water Marine Share: Watercraft Open Water Marine Visit Website 4120 Memorial Hwy Mandan, ND 58554 (701) 214-0425 (701) 663-4170 (fax) About Map About We sell new and used Qwest and Angler Qwest pontoons. The most innovative and cutting-edge fishing and luxury pontoons. What's Nearby? Distance: 5 10 15 20 25 50 mi.