IAEA Confirms New Activity at Iran's "Kouh-e Kolang" Nuclear Facility
nashnova research
IAEA chief Grossi confirmed satellite imagery shows new construction activity at Iran's Pickaxe Mountain nuclear facility, but inspectors have not been allowed inside; the IAEA board has now referred Iran's file to the UN Security Council, pushing the crisis toward sanctions or military authorization.
What is Pickaxe Mountain?
Pickaxe Mountain sits in the Zagros range, roughly 220 km south of Tehran, adjacent to Iran's main uranium-enrichment plant.
Iran began building the facility after a sabotage operation hit its centrifuge workshop six years ago, with the stated goal of moving nuclear infrastructure inside mountain tunnels to shield it from military strikes.
This means → Pickaxe Mountain is not an ordinary construction site. It is Iran's nuclear program's "hardened backup" — once completed, destroying it from the outside becomes far more difficult.
What can the IAEA see — and what can't it?
Grossi told Bloomberg Television on September 10 that remote-sensing imagery shows new movement around the Pickaxe Mountain construction site.
But he acknowledged: "We do not have any precise information about what is going on inside." Inspectors have not been granted access to the tunnel complex.
In plain terms = the IAEA can only watch from outside. It knows someone is building, but what equipment is being installed and how far the work has progressed are complete blind spots.
What does the board vote and Security Council referral mean?
The IAEA Board of Governors passed a censure resolution late on September 9, formally referring Iran's nuclear file to the UN Security Council over non-compliance with nuclear obligations.
Since the June 2025 Israeli-American strikes on Iranian nuclear facilities, inspectors have been unable to verify the status or location of Iran's near-weapons-grade enriched-uranium stockpile.
This means → the referral is a procedural escalation. It could trigger a new round of international sanctions or even provide an authorization framework for military action.
What signals are the US and Iran sending?
Trump mentioned Pickaxe Mountain publicly at least twice in the past week. At a Republican rally on the 9th he warned: "I'd suggest Iran not play games, or we will have to hit them hard."
Iran circulated a diplomatic note to Western capitals this week, warning against turning the IAEA into a "tool of war." It cited the June 2025 precedent — Israel struck within hours of an IAEA non-compliance finding — calling it "definitive proof of a behind-the-scenes agenda."
This reflects both sides laying the rhetorical groundwork for possible escalation: the US keeping the military option visibly on the table, Iran trying to recast the international inspection regime as a prelude to strikes.
The bigger picture: is nuclear proliferation accelerating?
Grossi voiced broader concern: a growing number of countries are re-evaluating the acquisition and potential use of nuclear weapons.
He linked this directly to "a world with more conflict, more war," and warned that proliferation "would be a terrible thing" and that the use of nuclear weapons is "almost a certainty."
In plain terms = Grossi's subtext is clear: Iran is not an isolated case. If the Pickaxe Mountain model — burying nuclear facilities inside mountains, refusing inspections — is replicated by other states, the entire non-proliferation framework is at risk.
What to watch next?
Trigger one: whether the Security Council referral leads to new sanctions or military authorization — this hinges on P5 dynamics, especially the positions of China and Russia.
Trigger two: when the IAEA can resume on-the-ground verification of Iran's nuclear stockpile — inspections are currently fully suspended, and restoring them is a prerequisite for any diplomatic path.
The trajectory of these two nodes will determine whether the Iran nuclear issue heads toward the negotiating table or toward a new round of military confrontation.
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