US President Donald Trump said that Iran’s Pickaxe Mountain is “on the list” of the assets Washington is considering targeting in this stage of the conflict.

Speaking to CNN earlier today, a senior security source in Tehran said that Iran would deliver a “devastating response” if Trump goes through with the threat.

Pickaxe Mountain, known in Farsi as Kuh-e Kolang, is located about a mile south of Natanz in central Iran. It was declared to the United Nations’ International Atomic Energy Agency in 2020 as a future facility to assemble the centrifuges that make nuclear fuel.

In February this year, before the joint US-Israeli strikes on Iran, CNN reported that Tehran was fortifying its nuclear sites and rebuilding missile production facilities.

High-resolution satellite imagery from February 10, 2026, analyzed by the Institute for Science and International Security (ISIS), showed Iran continuing to harden tunnel entrances at the underground complex carved into Pickaxe Mountain.

In June, months into the conflict, ISIS said that Pickaxe Mountain was “largely accessible and open and under ongoing construction,” adding that it was not believed to hold any enriched uranium stocks or “facilities ready to operate.”

Satellite images from April and May this year showed “a constant presence of vehicles moving around the construction site,” which the institution said indicated that work on the site was progressing.

“Overall, this tunnel complex does not appear to be operational or of paramount importance to the Iranians yet. That may help explain why neither the United States nor Israel has attacked the site so far,” it suggested last month.

CNN’s Mostafa Salem, Farida Elsebai and Gianluca Mezzofiore contributed to this reporting.

US President Donald Trump said that Iran’s Pickaxe Mountain is “on the list” of the assets Washington is considering targeting in this stage of the conflict.

Speaking to CNN earlier today, a senior security source in Tehran said that Iran would deliver a “devastating response” if Trump goes through with the threat.

Pickaxe Mountain, known in Farsi as Kuh-e Kolang, is located about a mile south of Natanz in central Iran. It was declared to the United Nations’ International Atomic Energy Agency in 2020 as a future facility to assemble the centrifuges that make nuclear fuel.

In February this year, before the joint US-Israeli strikes on Iran, CNN reported that Tehran was fortifying its nuclear sites and rebuilding missile production facilities.

High-resolution satellite imagery from February 10, 2026, analyzed by the Institute for Science and International Security (ISIS), showed Iran continuing to harden tunnel entrances at the underground complex carved into Pickaxe Mountain.

In June, months into the conflict, ISIS said that Pickaxe Mountain was “largely accessible and open and under ongoing construction,” adding that it was not believed to hold any enriched uranium stocks or “facilities ready to operate.”

Satellite images from April and May this year showed “a constant presence of vehicles moving around the construction site,” which the institution said indicated that work on the site was progressing.

“Overall, this tunnel complex does not appear to be operational or of paramount importance to the Iranians yet. That may help explain why neither the United States nor Israel has attacked the site so far,” it suggested last month.

CNN’s Mostafa Salem, Farida Elsebai and Gianluca Mezzofiore contributed to this reporting.