(Rapid City, SD) — Three people from Rapid City are going to prison after the conclusion of a drug conspiracy case. That’s according to the U.S. Attorney’s Office District of South Dakota. They were sentenced last week, along with one person from Colorado. The convictions stemmed from a large-scale distribution of meth in Rapid City and on the Pine Ridge Reservation. Authorities report between 33 to 99 pounds of meth were distributed in South Dakota. The person from Colorado was guilty for being the source of supply.