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May 21, 2026 Fatality

Accident Classification: Exploding Vessels Under Pressure
Location: lone Mountain Pit - Las Vegas, Nevada
Mine Controller: MCC Development Corporation
Mine Type: Surface
Mined Material: Construction Sand and Gravel
Incident Date/Time: May 21, 2026 10:45 am
PRELIMINARY REPORT

A contractor died when an explosion occurred while he was heating the flights on an auger used to load ammonium nitrate.

The information provided in this notice is based on preliminary data ONLY and does not represent final determination regarding the nature of the incident or conclusions regardingthecause of the accident.