(Corvallis, OR)  --  Sentencing is scheduled for March for a California woman who pleaded guilty to running a complex credit card fraud scheme in Oregon.  Federal prosecutors say Mariam Gevorkova led a group of people using fraudulent credit cards to buy luxury items and lavish vacations,  who then told the credit card companies the purchases weren't authorized.  Losses totaled one-and-a-half-million dollars.  Gevorkova also ran two illegal marijuana grow operations and a state-licensed retail marijuana shop in Corvallis, Oregon to sell the pot.  She faces a possible 30 years in prison.