We present a case report and review of the literature of traumatic dislocation of the carpometacarpal joint of the left thumb without associated fracture. The injury was sustained while skiing, and after emergency department diagnosis, the dislocation was reduced and the joint stabilized with a splint. The patient was discharged with close follow-up with a hand surgeon for definitive surgical fixation. Carpometacarpal joint dislocations of the thumb are exceedingly rare injuries and require appropriate diagnosis and treatment to minimize the morbidity and loss of function that can occur with these injuries.