The Treefort Music Fest is a five-day, indie rock festival which is held at numerous venues throughout downtown Boise, Idaho in late March. The inaugural festival took place during March 20–23, 2012, with featured acts from Built to Spill, The Joy Formidable, and Poliça. Treefort has been called "the west’s best SXSW alternative" and "Boise's preeminent artistic, cultural, and musical happening" which has "morphed from quirky music festival to consuming community event." It has also been characterized as having become a "nationally renowned gathering just by maintaining its personable close-knit vibe" and a "music lover's joyous mayhem" which showcases and amplifies the soul of Boise. Given its track record, by its seventh year Treefort was being hailed as "the greatest music festival in the country" and "an absolute gem of a festival."

Boise is the capital and most populous city in the U.S. state of Idaho and is the county seat of Ada County. As of the 2020 census, there were 235,684 people residing in the city. On the Boise River in southwestern Idaho, it is 41 miles (66 km) east of the Oregon border and 110 miles (177 km) north of the Nevada border. The downtown area's elevation is 2,704 feet (824 m) above sea level.