Area 51 Nellis Bombing Range Test Site airport (KXTA) on the north of the Area 51 USAF military installation. The lake at elevation is approximately from north to south and from east to west at its widest point. Located within the namesake Groom Lake Valley portion of the Tonopah Basin, the lake is south of Rachel, Nevada. The origin of the Area 51 name is unclear. The most accepted comes from a grid numbering system of the area by the Atomic Energy Commission (AEC); while Area 51 is not part of this system, it is adjacent to Area 15. Another explanation is
Texas State Highway 51 Texas State Highway 51 Texas State Highway 51 (SH 51) is a short state highway located entirely in Hansford County, Texas, just south of Spearman. SH 51 begins at SH 207 southeast of Spearman and travels east through unincorporated Hansford County approximately . It is a two-lane route for its entire length, and has no intersections with other state-maintained routes until its terminus at FM 281, which continues to the east and south, and FM 760, which travels north to Spearman. The original SH 51 was designated on August 21, 1923 as a route from Sagerton to Crowell, replacing a