The study was conducted in an effort to ascertain the magnitude and dimensions of the delinquency problem among the American Indian youths from the Wind River Reservation (Wyoming). During the summer of 1971 data were obtained from the records of the Court of Indian Offenses, the Tribal police, the juvenile officer on the reservation, the Riverton Police Department, the Lander Police Department, and the Fremont County Sheriff's Department. In addition, numerous conversations were held with various Bureau of Indian Affairs officials, personnel involved in Community Action Programs, police personnel, and school officials. The data were put into table forms; e.g., cases involving juveniles charged with delinquent acts dealt with by the Court of Indian Offenses, and charges against juveniles by the Lander Police Department and the Fremont County Sheriff's Department during fiscal year 1971. The 16 major findings cover various areas, such as: from 1967-71, 1,047 cases involving juveniles were adjudicated by the Court of Indian Offenses; and approximately 2/3 of the delinquency cases involved males and 1/3 involved females. Ten specific suggestions for delinquency prevention and treatment programs are listed; e.g., every effort should be made to increase employment opportunities for both Indian adults and youths and the existing alcoholism rehabilitation program on the reservation should be evaluated and every effort should be made to make it as effective as possible. (FF)