President Donald Trump declared on July 13 that the US is prepared to “take out Pickaxe Mountain,” a deeply fortified underground complex near Iran’s Natanz uranium enrichment facility. The threat, made during an appearance on the Hugh Hewitt Show, marks a significant escalation in US-Iran tensions.

What is Pickaxe Mountain and why does it matter

Pickaxe Mountain sits roughly 2 kilometers south of Natanz, Iran’s primary uranium enrichment complex. Construction of tunnel entrances at the site began in December 2020, and satellite imagery has tracked ongoing building and security enhancements ever since.

The facility is reportedly buried more than 100 meters underground. That depth matters because it potentially places the complex beyond the reach of conventional bunker-buster munitions, making it one of the most challenging military targets on earth.

The International Atomic Energy Agency has not inspected the site since construction began. That’s over five years of zero visibility into what Iran has been building inside a mountain adjacent to its known enrichment operations.