A lmost all residents of Ontario, Canada live within 30 minutes of an emergency department. 1 However, for about 25 000 Ontarians living in remote commun ities, accessing a doctor in an emergency department requires flying in a plane or helicopter. 1 Patients in these northern com munities access medical care through a local nursing station, with intermittent incommunity physician coverage. Patients with highacuity conditions are transported from remote com munities to hospital by Ornge, the provincial medical air ambulance service provider. 2,3 Even under ideal conditions, these transfers take several hours. Air transports from these communities can face delays due to weather, visibility, mechan ical issues and personnel issues. More than half of the associ ated remote airports do not have key visual aids that pilots use to land aircraft during periods of reduced visibility, which makes medical transports dependent on weather conditions. 4 First Nations populations living in remote communities are known to face challenging social determinants of health: isolated geography, insufficient housing, unemployment, and the cultural impact of colonialism and residential schools. 5 Access to potable water is an issue in many communities, with 188 boil water advisories in First Nations in the Sioux Look out area between 2007 and 2016. 6 These populations face trauma at rates 2.5-8 times greater than the Canadian aver age. 7-10 People living in these communities face elevated rates of chronic disease, which manifest as critical health emergen cies including mental health, infectious disease, diabetic and cardiovascular emergencies. 11-14 The characteristics of patients requiring air medical trans port in this region have not been well described, with only a handful of published papers describing medical emergencies in these remote communities over the last 35 years. 2,6,7,15,16 We aimed to describe who is transported from 26 remote Nish nawbe Aski Nation communities in northern Ontario to access hospitalbased emergency medical care and to describe the primary clinical reason for their transport as stated in the