The Cygnus Wall  is a portion of the larger North America Nebula which covers a region more than ten times the area of the full moon.


The blue (Oxygen) portion of the nebula resembling Mexico and Central America is known as the Cygnus Wall. This region exhibits the most concentrated star formation.


The distances to the nebula were controversial, because there are few precise methods for determining how far away an HII region lies. In 2020, the Gaia astrometry spacecraft measured the distances to 395 stars lying within the HII region, giving the North America nebule a distance of 2,600 light years.


The entire region is estimated to be 140 light years across, and the North America nebula stretches 90 light years north to south.