Iditarod Trail Sled Dog Race to the 2010 census, it has a population of 401, making it the largest checkpoint in the Interior. McGrath is also notable for being the first site in Alaska to receive mail by aircraft (in 1924), heralding the end of the sled dog era. It still has a good airfield, so journalists are common. Following McGrath is Takotna, formerly a commercial hub during the gold rush. The ghost town of Ophir, named for the reputed source of King Solomon's gold by religious prospectors, is the next checkpoint. By this stage in the race, the front-runners may be several days ahead
Iditarod Trail Sled Dog Race of those in the back of the pack. After Ophir, the trail diverges into a northern and a southern route, which rejoin at Kaltag. In "even"-numbered years ("e.g." 2016, 2018) the "northern" route is used; in "odd"-numbered years ("e.g." 2017, 2019) the "southern" route is used. During the first few Iditarods only the northern trail was used. In the late 1970s, the southern leg of the route was added. It gave the southern villages a chance to host the Iditarod race and also allowed the route to pass through the trail's namesake, the historical town of Iditarod. The two routes