Iran’s secret Pickaxe Mountain site raises new questions about nuclear agreement
One of the leading American institutes devoted to research on the Islamic Republic’s nuclear program sounded the alarm this week over the regime’s uninspected underground site in the Zagros Mountains. Inspectors from the International Atomic Energy Agency (IAEA) have not been allowed to visit the secret site, known as Pickaxe Mountain.
The highly secretive facility is casting serious doubt on Iran’s willingness to abide by the terms of the memorandum of understanding (MOU) reached with the Trump administration. The United States, together with Israel, launched Operation Epic Fury on February 28, 2026, targeting Iran’s nuclear and missile capabilities.
Experts from the Washington-based Institute for Science and International Security (ISIS) argue that halting work at Pickaxe Mountain and allowing IAEA inspectors access would be a key good-faith measure to test whether Iran is prepared to abandon its pattern of deception.
Spencer Faragasso, a senior fellow with the group who covers Iran, North Korea, illicit trade, and nuclear issues, wrote on X: “Important update by us at @TheGoodISIS. The ongoing work at Pickaxe Mountain is deeply concerning. This work has continued steadily since at least 2020. In my view, this is a hedge by Iran in case negotiations fail — they will then have a nuclear facility in a late stage of construction. We assessed that Pickaxe is likely large enough to hold an enrichment plant.”
Faragasso added, “If Iran is serious about negotiating, it should halt construction at Pickaxe Mountain as a token of good faith. But what can be expected from a regime as brutal and conniving as Iran’s?”
The institute posted a detailed analysis of new satellite imagery from late June 2026 showing continued activity at Pickaxe Mountain.
The institute wrote that “at Pickaxe Mountain, vehicle activity can be seen on the roads leading to the open set of Western tunnel portals, indicating that construction inside the tunnel complex, as well as hardening of the tunnel entrance, are ongoing. The MOU signed between the United States and Iran requires that Iran maintain the status quo, which should prohibit construction at any nuclear-related facility, including Pickaxe Mountain.”
This is an excerpt of an article by Fox News Digital’s Benjamin Weinthal.
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