While still in graduate school in 1947, Canadian geologist Bill Mathews published a paper titled, Tuyas, Flat-Topped Volcanoes in Northern British Columbia, in which he coined the term tuya to refer to these distinctive volcanic formations. Tuya Butte is a near-ideal specimen of the type, the first such landform analyzed in the geological literature, and this name has since become standard worldwide among volcanologists in referring to and writing about these formations. Tuya Mountains Provincial Park was recently established to protect this unusual landscape, which lies north of Tuya Lake and south of the Jennings River near the boundary with Yukon. Around the same time that Mathews published his paper, the Icelandic geologist Guðmundur Kjartansson had distinguished between móberg ridges and tuyas in Iceland and proposed the hypothesis that they were formed during subglacial and intraglacial eruptions.