“Iran has increased construction at a mysterious underground site in the months since the U.S. and Israel pummeled its main nuclear facilities, suggesting Tehran has not entirely ceased work on its suspected weapons program and may be cautiously rebuilding,” according to a Washington Post review of satellite imagery and independent analysis.
“The ongoing work is at a site known as Kuh-e Kolang Gaz La, or Pickaxe Mountain, where since 2020, Iranian engineers have been tunneling deep into the Zagros mountain range — about a mile south of the nuclear complex at Natanz, which was a target of U.S. bombing strikes on June 22.”

