Please submit sites relevant to the community of Flat. Flat is located on Otter Creek, 7 miles east of its junction with the Iditarod River. It lies 59 miles northeast of Holy Cross, 8 miles east of Iditarod, in the Kilbuck-Kuskokwim Mountains. Submitting a site based in or related to another locality may significantly delay the site from being listed in the directory.