Major Zephyr was founded after long-time Jackson Hole musicians Jeff Eidemiller, Pete Muldoon, and Marshall Davis spent a month in Mendoza,  Argentina at La Flora Estudio writing and recording music for a future project. After returning to the US, they decided to name the band Major Zephyr, and their first show was as the opener for Deer Tick. Major Zephyr plays a mix of Americana/Alt Country, and is guitar-driven and thematically political and philosophical.