But these giant arrows, which can measure up to 70ft in length, are actually a forgotten remnant of a bygone age.
Dotted among scrubland, placed in seemingly random spots, these huge arrows were once markers for early airmail flights across the US - forming the first land-based navigation system in the world.
Airmail in the US began as early as 1911, with the first official flight departing Petaluma, California, and arriving in Santa Rosa, California. As the flights got longer, with more frequent stop-offs, so the beacons and arrows were placed to help pilots on their way.
Following World War One, the US Postal Service began to use surplus war planes for mail delivery and many were flown by former army pilots.
In the summer of 1924, they stretched from Wyoming to Ohio and by the following year, the arrows had reached New York. By 1929, the arrows could direct flights all the way across the width of America.
The main New York to San Francisco air route stretched from New York to San Francisco, following the yellow concrete trail.
While the arrows are now long-forgotten, with many lost forever, there are fans who, having stumbled upon an arrow or two in the countryside, have started mapping those concrete markers that have been left behind.
Retired couple Brian and Charlotte Smith were sent an email which piqued their interest and have been hunting down the arrows ever since.
The couple say they have found 102 arrows so far and have set up their website Arrows Across America as part of their photography site dreamsmithphotos.com so fellow fans can share their own pictures and help map where the remaining arrows are.
The Smiths told MailOnline Travel: 'We have located 102 arrows or portions of arrows, some are badly deteriorated and not much is left.
'We have managed to take photos of approximately 40, and have a trip planned this fall to take more photos of some that we were unable to get to last spring.
'Eventually we hope to have photos of all the arrows that we have located, but time and money will dictate how long that will take us.
'Before our research we knew nothing about airways, beacons or concrete arrows, it has been a marvelous journey of discovery and we cannot believe that all of this has been "forgotten."'.