Sandra Calderon Urrutia, 24, of McAllen, Texas, was last heard from on July 10, 2013, during an attempt to cross the border between Mexico and the United States. She had been in contact with family before the crossing but has not been heard from since, and her disappearance suggests she may have encountered difficulties while attempting the journey.

At the time she went missing Calderon Urrutia was described as 5 feet 5 inches tall, about 160 pounds, with black hair and other distinctive features. Her case is registered in NamUs and has been included in multiple missing persons bulletins as family, friends, and authorities seek information.

Very little is known about what happened after July 10, 2013. If anyone saw Sandra around that date or has information about her movements or fate, please come forward.