Area 69 is the highly protected and secretive government research facility in the heart of Bone County, San Andreas. It sits immediately to the south of Verdant Meadows, to the west of Las Venturas, to the east of El Castillo del Diablo, and directly to the north of Green Palms. The base is a spoof of the real-life Area 51 in southern Nevada, but named after the 69 sexual position. In the past, the base was associated with the long-held rumour of aliens and UFO landings in the game. Entering or flying over the base results in a 5-star wanted level. Flying over the base results not only in the wanted level, but also tracking and attack from SAM sites and pursuing Hydras. Flying too close to the edge of the base will also result in attack from the nearest SAM site, although a wanted level will not be obtained if close enough to the base's periphery. The base's 3 SAM sites may be destroyed using powerful weaponry such as missiles from a jet, a rocket launcher, or a minigun. Furthermore, their heat-seeking missiles may be avoided using flares, if equipped on the player's aircraft.
The base houses various clandestine government projects, including the Black Project jetpack. Echoing the conspiracy theories surrounding Area 51, it is implied that the facility may be tied to local housing projects involving UFOs and extraterrestrial life, as suggested by the presence of the nearby Lil' Probe'Inn, the dialog on the base's PA system during the Black Project mission (directly saying "alien technology"), and by dialog on Marvin Trill's in-game radio show. Much of the base consists of underground research labs, although the player can only enter these labs during the course of a single mission (or by finding a way into San Andreas' "Blue Hell" — an area under the main terrain mesh — and finding the underground base there). The above-ground structures include a series of control towers, guard posts, and garages for military vehicles, including a Patriot, a Rhino, and a Hydra. These garages are the first area in the game in which tanks and military helicopters will automatically spawn.
 Missions in Area 69 (Grand Theft Auto: San Andreas)
After making his way out to Bone County to meet up with Mike Toreno at the abandoned airstrip, Carl Johnson begins performing dangerous and difficult tasks for this shady government agent. After temporarily satisfying Toreno's wishes, Carl receives an unexpected visit at the airstrip from The Truth, who Carl hasn't seen since leaving San Fierro. The Truth, disturbed by Carl's allegiance to Toreno, makes his own request: to steal the Black Project from the nearby Area 69 military research facility. The Truth drops Carl off in front of the facility's main gate, and drives off in a hurry, leaving Carl to infiltrate the base alone. Armed with night vision goggles, Carl sneaks into the base, and down into the underground research labs. Carl is forced to blast his way through soldiers and scientists alike, as he makes his way into the depths of the compound, where he finally locates the jetpack. Climbing into the jetpack's straps, Carl boldly applies thrust and escapes through the open sky bay overhead, and blasts off away from the facility as quickly as possible to avoid being shot down by SAM sites and military personnel.
 Entrance to Area 69
Get into blue hell with the jetpack. Fly under to the restricted area A.K.A Area 69. Fly under the building. If you fly up, you should be able to get in it. There is some cool stuff in this building that you probably didn't have enough time to look at during the mission Black Project.