Keish ( – July 11, 1916), also known as James Mason and by the nickname Skookum Jim Mason, was a member of the Tagish First Nation in what became the Yukon Territory of Canada. He was born near Bennett Lake, on what is now the Yukon–British Columbia border. He lived in Caribou Crossing, now Carcross, Yukon. His mother, Gus'duteen, was from Tahltan country around Telegraph Creek while his father was Kaachgaawáa, chief of the Tagish Deisheetaan. His family was involved in trade between the coastal Tlingit and the inland Tagish. In 1891, the couple had daughter Saayna.aat, known also as Daisy. Who saw the gold first is a matter of dispute. Carmack claimed that he noticed it first, but Keish and his nephew asserted that it was Keish who was the discoverer.