Estelle Ishigo, née Peck, was an American artist known for her watercolors, pencil and charcoal drawings, and sketches. During World War II she and her husband were incarcerated at the Heart Mountain Relocation Center in Wyoming. She subsequently wrote about her experiences in Lone Heart Mountain and was the subject of the Oscar winning documentary Days of Waiting: The Life & Art of Estelle Ishigo.

The Heart Mountain War Relocation Center, named after nearby Heart Mountain and located midway between the northwest Wyoming towns of Cody and Powell, was one of ten concentration camps used for the internment of Japanese Americans evicted during World War II from their local communities in the West Coast Exclusion Zone by the executive order of President Franklin Roosevelt.