BackgroundImagination Peak pyroclastic cone NW of Pelican Butte was considered to be of Holocene age (Sarna-Wojcicki et al. 1983, Smith 1988), but Sherrod (1995 pers. comm.) considered a Holocene age to be uncertain, based on the lack of a summit crater and possible glaciation. The sharp-topped summit without a crater is morphologically similar to Lone Peak in the southern Cascades of Washington, a tuya constructed through a glacial icesheet or glacial lake.
Source: Smithsonian / GVP volcano information
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