Yuma Sector Border Patrol agents working with a helicopter crew recovered the body Monday.
The woman’s name wasn’t released, but authorities say she was in her 40s.
Border Patrol officials say the cause of death is pending an autopsy.
Mexican authorities informed the Yuma Sector Operations Center that they had been contacted by a group of 10 immigrants lost somewhere in the desert.
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The caller stated one of the women in the group was losing consciousness and they left her behind.
Border Patrol official say the nine other immigrants were found in good health and will be sent back to Guatemala.
© 2019 The Canadian Press