Overview
- Recent satellite imagery and intelligence assessments show intensified construction at Pickaxe Mountain near Natanz and suggest thousands of centrifuges may have been moved into tunnels, prompting renewed U.S. military focus in July 2026.
- The IAEA has not been granted detailed access and Iran’s official purpose for the complex remains unconfirmed, so outside conclusions rely on national intelligence and open‑source imagery.
- Experts estimate the underground galleries sit roughly 90 to 137 meters under granite, a depth that reduces confidence that existing bunker‑busting munitions can destroy all potential targets inside the site.
- Public reporting says Iran holds about 440–450 kilograms of uranium enriched to roughly 60 percent, a stockpile that heightens proliferation concern if it is sheltered or processed in a protected facility.
- Past U.S. and Israeli strikes on Natanz, Fordow and Isfahan appear to have driven Iran to harden underground locations, raising the risk of wider escalation and making inspections, satellite monitoring, and diplomatic moves the key signals to watch next.