Iditarod Trail Sled Dog Race differ by less than . The northern route first passes through Cripple, which is from Anchorage, and from Nome (ITC, "Northern"), making it the middlemost checkpoint. From Cripple, the route passes through Sulatna Crossing to Ruby, on the Yukon River. Ruby is another former gold-rush town which became an Athabaskan village. The southern route first passes through the ghost town of Iditarod, which is the alternate halfway mark, at from Anchorage, and from Nome (ITC, "Southern"). From Iditarod the route goes through the three neighboring Athabaskan villages of Shageluk, Anvik, Grayling, and then on to Eagle Island, Alaska. Ruby and
Iditarod Trail Sled Dog Race Leonhard Seppala. However, this criticism is inconsistent with the fact that Leonhard Seppala was one of the primary mushers who delivered serum in 1925 (see above). Animal protection activists also say that the Iditarod is dog abuse. For example, dogs have died and been injured during the race. The practice of tethering dogs on chains, which is commonly used by mushers in their kennels, at checkpoints and dog drops, is also criticized. People for the Ethical Treatment of Animals spokesperson Jennifer O'Connor says, "We're totally opposed to the race for the cruelty issues associated with it". The ASPCA said, "General