Jujiro Wada improved, explored and expanded the the Iditarod trail, as commissioned by the Seward Chamber of Commerce, together with Frank Cotter. This was in 1909, conditions were harsh that year. In the midst of this exploration, his lead dog suffered from a frozen paw near Rainy Pass, where temperatures dropped to -62C. Wounded he could barely move forward. Frank Cotter wrote about about this episode in his memories about Wada in the Nikkei Weekly titled Ju Wada as I know him. For more details on Wada`s travel see Life History.