UFO crash site

The UFO crash site is an unmarked location in the Commonwealth in 2287, just east-southeast of Oberland station. However, there will not be anything there until the UFO crash occurs.

Background
When traveling around the Commonwealth after reaching level 20, a random encounter may occur, where the Sole Survivor hears the sound of an incoming plane. A vessel will then pass quickly by overhead before crashing in the distance. It leaves a distinct trail of smoke. The ship always crashes in the same location, and one can hear the explosion from far away.

Alternatively, if the Sole Survivor activates relay tower 1DL-109, a radio signal titled "garbled radio beacon" will be discovered. If they tune their radio to the frequency, they can travel east and the signal will resolve to a higher quality until they discover a crashed alien vessel.

Layout
The site features a half-buried UFO in a hillside with a skid area of destruction including broken trees, flattened ground and scattered flames. The surrounding trees will be permanently on fire, making the location easier to spot from afar. There is no way to enter the UFO, nor anything to scavenge at the crash, but next to the still burning UFO is a trail of green blood. The Sole Survivor can follow the trail slightly north, down into a ravine and then into a nearby unmarked cave.

Inside the cave is an alien with an alien blaster pistol and 181–441 alien blaster rounds. If the alien is targeted in V.A.T.S., it will show that its right leg is crippled. On sight, the alien will immediately attack the Sole Survivor. Next to the alien is a human skeleton and a ham radio which is the source of the nearby garbled radio beacon. Turning the ham radio off will disable the beacon.

Notable loot

 * Alien blaster pistol.
 * A random amount of alien blaster rounds on the alien's body.

Appearances
The UFO crash site appears only in Fallout 4.