Inside Iran’s Pickaxe Mountain, the secret nuclear site Trump has threatened to bomb

Donald Trump has issued threats to bomb a secretive under-construction Iranian nuclear site buried deep under a mountain.The site, known as Kuh-e Kolang Gaz La, or “Pickaxe Mountain,” lies on the south side of Iran's Natanz nuclear enrichment site, which was bombed by the United States during Operation Midnight Hammer

BBC Verify has spoken to experts and analysed satellite imagery to piece together what we know about the site, and the potential impact of a US strike.