Approximate location — plotted from published sources, not a site visit, and not a guarantee of access.
The Black Mailbox site on Nevada’s Extraterrestrial Highway (SR-375) is a decades-old pull-off where UFO watchers gather near the Groom Lake Road corridor. The physical box has been moved, stolen, and replaced over the years, but the highway junction remains a landmark stop between Alamo and Rachel. Expect no services and sparse traffic; leave the site as you found it.