According to the latest assessment by the U.S.-based Institute for Science and International Security (ISIS), headed by nuclear expert David Albright, satellite imagery of the Iranian regime’s nuclear facilities indicates that uranium enrichment activities have not resumed at the three main sites of Natanz, Fordow, and Isfahan. At the same time, however, signs of ongoing construction work and vehicle traffic have been observed at the underground Kolang Gaz La mountain facility near Natanz, a site whose exact purpose remains unclear.
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The facility, Pickaxe Mountain (or Kuh-e Kolang Gaz La), is located south of the Natanz complex. According to the Albright Institute’s report, it remains accessible, open, and under construction. However, the institute emphasized that there is currently no indication that it is ready for operational use.
At Natanz, satellite imagery shows that large sections of the complex remain devastated, with no significant repair work observed at the main entrances or in areas associated with uranium enrichment. The electrical infrastructure and industrial systems also remain damaged, and according to the institute, there is no indication that enrichment operations are being restored at the site.
At Fordow, the entrances to the main tunnels are also reported to remain blocked. However, the Iranian regime has constructed earthen and rock barriers along the access roads leading to the tunnels. According to the Albright Institute’s analysis, these barriers are intended to prevent the rapid movement of vehicles and slow any potential operation against the facility.
At Isfahan, the tunnel entrances also remain covered with earth, and satellite imagery shows no signs that the access routes have been reopened or that equipment has been removed from inside the tunnels.
The main uncertainty now lies not at Natanz, Fordow, or Isfahan, but at Kolang Gaz La—a concealed, deeply buried facility lacking official transparency, where it remains unclear what the Iranian regime has hidden or what stage of its nuclear activities it is preparing for.
