Located at Opex Ave. and Main St. Darley Model 2 or 1.
Not much is known about this siren, other than it served the once-thriving mining community of Mammoth, Utah. The town has been in decline since 1930, and with the current population being a quarter of what it once was, the state of this siren is currently undetermined. The fire department it sits on is registered with the Utah Historic Preservation Office. Photos dated 10/13/2022.