Iran's Pickaxe Mountain has a name that tells you what it is for: Kuh-e Kolang Gaz La, a fortified complex dug into rock southwest of the Natanz enrichment site, the deepest of the country's nuclear-linked bunkers. Israeli intelligence now assesses that Iran moved part of its roughly 440-kilogram stockpile of 60% enriched uranium, along with centrifuges, inside it during 2025 [2].
On Monday, in the Oval Office, Trump renewed his threat to hit it. The strike would come 'probably pretty soon,' he said, 'and there's not a thing they can do' [2]. He told Al Jazeera's account the site would be struck 'very heavily' [3].
The depth is what 'not a thing' runs into. Weapons analysts, including a technical assessment by The War Zone, note that Pickaxe Mountain sits below the penetration capacity of the GBU-57/B Massive Ordnance Penetrator - the largest conventional bunker-buster in the US arsenal, a 30,000-pound weapon built specifically for buried targets [1]. Trump's own earlier phrasing conceded the limit. On July 13 he described the plan as 'a big fat shot right near the front door' [1]. A shot at the front door collapses the entrance; it does not reach chambers dug on purpose to sit beneath a bomb's maximum depth [1].
David Albright of the Institute for Science and International Security notes the site was probably spared in earlier strikes because 'nothing of sufficient value was inside it' - the judgment Israeli intelligence now says has changed [1][2]. No outside inspector can confirm the current contents: the IAEA has never been granted access to Pickaxe Mountain [1].
The honest description of the option is narrower than the threat. What the United States can deliver, by the account of the analysts who study its munitions, is the sealing of the mountain's entrance - burying what is inside rather than eliminating it [1]. That is a consequential act. It is not the clean, total, nothing-they-can-do strike the words describe [1][2].
