RIVERTON, WY 10-27-05 -- Wyoming Division of Criminal Investigation Special Agent Darrell Steward uses a collection of materials easily purchased in stores to demonstrate to school groups how methamphetamines are produced. Most meth on the reservation is

RIVERTON, WY 10-27-05 -- Wyoming Division of Criminal Investigation Special Agent Darrell Steward uses a collection of materials easily purchased in stores to demonstrate to school groups how methamphetamines are produced. Most meth on the reservation is believed to originate in large drug labs in Mexico. The Wind River Reservation is located between the Wind River Range and the Owl Creek Mountains. The reservation is shared by about 4200 Eastern Shoshone and 7400 Northern Arapaho. The reservationn is located in west central Wyoming. (DENVER POST PHOTO BY KARL GEHRING.) (Photo By Karl Gehring/The Denver Post via Getty Images)