Lone Hill was last seen on October 3, 2016. She texted her cousin to say she was going with two male friends from the Pine Ridge Indian Reservation to Rapid City, South Dakota. One of the men reportedly dropped her off at a party. She has never been heard from again. Authorities believe foul play is involved in Lone Hill’s case. They have not identified any suspects and few details are available in her case. Her disappearance remains unsolved. She is a Native-American female with brown hair and brown eyes. Lone Hill is a member of the Lakota Indian tribe. Her nickname is Rissa and she may use the first name Lisa. She has the following tattoos; the name "Luda" on her knuckles, a paw print on her hand, a bear claw with writing on her wrist, and the words "Mom" and "Lisa" somewhere on her body.