A centered band of triangles, steps, and arrows evokes the bustle of Saltillo, a thriving city in Northern Mexico. On each side of this central motif, a vibrant ombre echoes the striking sunsets in the nearby Chihuahuan Desert. A lack of pollutants and water particles makes for greater spectral purity in the skies above this vast, dry eco-region. This allows brilliant and breathtaking color to fill the sky as the sun sets on another day.