Organ Pipe Cactus National Monument was created by President Franklin… (Alan66 )
Dusk can be one of the most beautiful times in the desert, as shown by Times reader "Alan66." In this picture, the photographer captures two types of cactus silhouetted against the sunset in Arizona's Organ Pipe Cactus National Monument. Can you guess what types they are?
Time's up. On the left is the iconic saguaro cactus. That should have been easy. On the right is the organ pipe cactus, the namesake of the national monument. That should have been easy too.
Organ Pipe Cactus National Monument, in southern Arizona near the Mexican border, was created by President Franklin D. Roosevelt in 1937. A trade route once passed through the site, and it was mined for minerals up until 1976. The national monument features campsites and miles of hiking trails. In the spring, wildflowers bloom.
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Photos: America's most-visited national monuments
-- Jason La