What to Know About Fordow, Key Iranian Nuclear Site Struck by US

Iran’s most critical and heavily fortified nuclear site is located at Fordow, a mountainous region roughly 60 miles southwest of the Iranian capital of Tehran.

That site, along with Iran’s Natanz enrichment facility and its Isfahan nuclear technology center, were hit in a series of U.S. airstrikes on Saturday evening intended to destroy, or otherwise significantly set back, Iran’s nuclear program.