Grand Portage Housing Complex Grand Portage, MN 55605 Phone : (218) 475-0004 Us General Service Administration Us Border Station Us Hwy 61 N Grand Portage, MN 55605 Phone : (218) 475-2221 Grand Portage Chipper Plant Hwy 61 N Grand Portage, MN 55605 Phone : (218) 475-2520 Ammex Tax & Duty Free Shops 9301 Ryden Rd Grand Portage, MN 55605 Phone : (218) 475-2233 Grand Portage Conservation Office 27 Store Rd Grand Portage, MN 55605 Phone : (218) 475-2509 Grand Portage Food Program Po Box 428 Grand Portage, MN 55605 Phone : (218) 475-2480 Grand Portage Marina 32 Marina Rd Grand Portage, MN 55605 Phone : (218) 475-2476 Grand Portage Construction Co 105 Store Rd Grand Portage, MN 55605 Phone : (218) 475-2462 Grand Portage Health Service 62 Upper Rd Grand Portage, MN 55605 Phone : (218) 475-2235 Education Office Grand Portage, MN 55605 Phone : (218) 475-2415