In 1903 Hubbard's husband, Leonidas, starved to death on his cartographic and ethnographic expedition to Labrador. Hubbard decided to complete her husband's work, becoming a skilled explorer and cartographer in her own right. She set out in July 1905 and with the help of George Elson, a Métis guide who had been employed by her husband on the original trip, and three other guides completed her expedition in record time with significant results, including completing the first accurate map of the Labrador river system, thus correcting the earlier map that had led to her husband's death. Her original photographs and the map are reproduced in this volume.