Claim: The Mabel Bassett Correctional Center (MBCC) is a prison facility for women that first opened in 1974.
Evidence: The Mabel Bassett Correctional Center (MBCC) is an Oklahoma Department of Corrections prison for women located in unincorporated Pottawatomie County, Oklahoma, near McLoud. The facility first opened in 1974, on Martin Luther King Drive in Oklahoma City.