article_snippet.sent: Painted bright yellow and placed alongside this beacon with a gas light at the top, the idea was that the markers could be seen for a distance of up to 10 miles so pilots could find pilots way.
article_snippet.sent: A beacon has survived in good condition in New Mexico (left) and at Cottage Grove in Oregon (right) - many of these were lost as the metal was used in the war effort during the Second World War .
article_snippet.sent: Our have managed to take photos of approximately 40, and have a trip planned this fall to take more photos of some that Our were unable to get to last spring. '
article_snippet.sent: Before Our research Our knew nothing about airways, beacons or concrete arrows, it has been a marvelous journey of discovery and Our cannot believe that all of this has been "forgotten."'.
highlights_snippet.sent: Hikers often stumble upon the unusual concrete markers and wonder why they were built .
  