Tara Calico was last seen on September 20, 1988, riding her mother's neon pink Huffy mountain bicycle on Highway 47 in Valencia County, approximately two miles from her home in Belen, New Mexico. She embarked on her routine 36-mile bike ride at 9:30 AM and was last spotted at 11:45 AM. Tara never returned home, and her bicycle was never found. Witnesses reported seeing a dirty white or light gray 1953 Ford pickup truck with a white handmade shell following her, though its connection to her disappearance remains unclear.