That darn Mark Trail

Letters to the Editor

The saguaro cactus grows in the Sonoran Desert, not the Chihuahuan Desert [in print as 'A spine in the side of Mark Trail']

Casey Dowell, Alexandria

Washington Post (January 23, 2016): https://www.washingtonpost.com/opinions/the-saguaro-cactus-grows-in-the-sonoran-desert-not-the-chihuahuan-desert/2016/01/21/f3ce67d2-bed5-11e5-98c8-7fab78677d51_story.html