This illustration shows the so-called Elephant Rock as viewed from the highway as it passes on into Tijeras Canyon in New Mexico.
The description states:
A-37 — ELEPHANT ROCK ON HIGHWAY U.S. 66 ENTERING TIJERAS CANYON, EAST OF ALBUQUERQUE, N. M.
This well known landmark comes into view shortly after entering Tijeras Canyon of the Sandia Mountains, eastbound out of the city for Santa Rosa, Tucumcari and West Texas points.
–It appears the fanciful name did not catch on, as the formation is not easily identified on line today. The word Tijeras means scissors.
This image likely dates from the 1940s.
Is it still there? Heard it was destroyed
As best as I can determine from Google maps, the link below shows the same location as the postcard. The extensive changes caused by the construction of Interstate 40 do indeed seem to have precipitated the removal of this rock formation if my location is correctly identified now.
https://www.google.com/maps/@35.0657232,-106.4243843,3a,75y,94.42h,80.73t/data=!3m6!1e1!3m4!1s4bJWuQxmVAdR3zdJbscUQA!2e0!7i13312!8i6656
It was knocked over in the 40s by a crew moving a military bunker in the area. Only the pedestal remains.
Thank you for correcting my speculation.