New Satellite Images Show Iran Racing to Build at Nuclear Sites Amid U.S. War

The ongoing U.S.-Iran war is now in its seventh month, driven by escalating military exchanges, mounting American casualties and a high-stakes confrontation surrounding the Strait of Hormuz. The Trump administration has repeatedly placed Iran's nuclear ambitions — particularly its increasingly fortified underground infrastructure — at the center of its justification for entering the conflict. Yet while Washington insists its campaign will prevent Tehran from obtaining a nuclear weapon, recent satellite imagery suggests activity at one of Iran's most secretive nuclear-related sites is accelerating rather than disappearing. Images taken in July and August 2026 and compared with observations from the same period last year reveal substantial new work at Kuh-e Kolang Gaz La, better known as Pickaxe Mountain, near the Natanz nuclear complex, according to analysis from the Center for Strategic and International Studies and reporting by CNN. The images raise fresh questions about how effectively military pressure can eliminate nuclear infrastructure buried deep beneath Iranian mountains.

The most significant changes appear at Pickaxe Mountain, an underground complex whose precise purpose Iran has never publicly clarified. Recent imagery indicates construction has advanced beyond the earlier excavation phase toward developing and protecting the facility itself. Workers appear to have expanded and paved internal road networks, reinforced tunnel portals with concrete and moved enormous quantities of excavated material around the site. Analysts at the Center for Strategic and International Studies assess that the deeply buried complex could eventually serve as a centrifuge assembly facility, an enrichment installation or a protected location for other nuclear work with potential weapons relevance. However, the evidence does not establish that uranium enrichment is currently occurring there, and analysts caution that the facility does not yet appear capable of enrichment. Another major uncertainty remains what is happening inside the mountain. Iran has continued to resist International Atomic Energy Agency requests for access, leaving inspectors without the ability to independently determine the underground complex's ultimate configuration or intended role.

The apparent construction surge creates a striking contrast with Trump's repeated declarations that American military action will permanently prevent Iran from developing a nuclear weapon. On September 7, Trump again connected victory in the war with eliminating that possibility, writing on Truth Social: «Oil prices will drop precipitously, like everything else is dropping (but more!), when we WIN the war with Iran. Three Dollars a gallon, but ultimately, below Two Dollars a gallon. It will all happen quickly, and Iran will never have a Nuclear Weapon. MAGA! President DJT.» The administration has simultaneously suggested that it is closely tracking activity around Pickaxe Mountain. Trump told reporters, «We know everybody that's moving» at the site and warned that the United States could strike it «very soon, and very heavily.» But the facility presents a formidable military problem: Pickaxe Mountain is buried beneath solid granite, creating uncertainty among defense specialists over whether existing American conventional bunker-busting weapons could reliably penetrate deeply enough to destroy critical infrastructure hidden inside.

The renewed attention surrounding Pickaxe Mountain comes as the wider U.S.-Iran conflict continues to produce direct military exchanges across the region. American forces have recently targeted Iranian military infrastructure and maritime assets, while Tehran has continued launching missiles and drones toward U.S. positions and regional targets. Washington has also intensified economic pressure, expanding sanctions against Iran's aviation sector and the international networks accused of helping it operate. Yet Pickaxe Mountain presents a fundamentally different challenge from exposed military installations. Its tunnels are buried beneath granite and specifically designed to make conventional attack extraordinarily difficult. The Pentagon has consequently been examining how American weapons might reach facilities constructed deeper underground than previous targets. Emergency testing at the White Sands Missile Range has reportedly explored capabilities against heavily fortified subterranean structures, highlighting the gap between Trump's confident public threats and the complex technical reality military planners would confront if ordered to destroy the Iranian site.

That difficulty is particularly significant because Washington has already employed its most powerful conventional bunker-busting weapons against Iran. During Operation Midnight Hammer in June 2025, B-2 stealth bombers struck Fordow while other attacks targeted Natanz and Isfahan, prompting Trump to declare Iran's nuclear infrastructure effectively destroyed. He wrote afterward: «Monumental Damage was done to all Nuclear sites in Iran, as shown by satellite images. Obliteration is an accurate term! … The biggest damage took place far below ground level. Bullseye!!!» Speaking separately to reporters, Trump reinforced the claim, saying, «I believe it was total obliteration,» and argued that Iran's nuclear program had been pushed backward by decades. More than a year later, however, satellite imagery showing accelerated construction at Pickaxe Mountain illustrates the limitations of treating the destruction of individual facilities as equivalent to permanently eliminating Iran's broader nuclear capabilities. CSIS analysts assess that even the GBU-57 Massive Ordnance Penetrator could struggle against the mountain's deeply buried granite fortifications.

The result is an increasingly consequential contradiction at the center of Washington's strategy. Trump maintains that the United States possesses overwhelming military superiority and can prevent Iran from obtaining a nuclear weapon, while Iran continues hardening infrastructure that may be extremely difficult to destroy from the air. Recent satellite analysis found more road activity at Pickaxe Mountain in 2026 than at any other point during six years of observation, although researchers stress that the imagery does not prove uranium enrichment is occurring inside the complex. Trump has nevertheless threatened further action, declaring that American intelligence can track movement around the facility and warning, «We know everybody that's moving at Pickaxe, we know everybody that's moving everywhere, all over Iran, and if anything goes bad, we hit them. We hit them hard.» With diplomacy stalled and construction continuing, Pickaxe Mountain may now become the clearest test yet of whether military force can actually deliver Trump's promise that Iran will never possess a nuclear weapon.

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