Allium acuminatum
Hooker's onion is common and widespread in Utah. Occuring in the open sagebrush foothills and valleys of Utah, often on rocky sloops. Native American tribes used Hooker's onion as a food source. This species grows from an underground bulb which typically produces 2 to 3 cylindrical leaves which only last a short time, disappearing once flowering.
The below list of places are great places to possibly see the Hooker’s onion.
The below links contain further information.