Inaugurated in 1987 the Downtown Boise Boise Twilight Criterium is a fast-paced, high stakes cycling race in the heart of downtown Boise. The electric atmosphere of the event attracts over 20,000 spectators to downtown streets to see cyclists from around the world compete for cash, naming rights and ego! This is one of Boise’s favorite summer attractions and one of the best criteriums on the USA Cycling racing calendar.
http://www.boisetwilightcriterium.com/
or
https://www.facebook.com/BoiseTwilightCriterium