Rushville, IL – Mapping problems will slow the deriving of new values for Schuyler County's farmland. Supervisor of Assessments Suzette Rice says her office is using an outside firm to prepare some of the digital maps. Rice says the company has been unable to provide some of the data as quickly as she wanted. She's told the county board she probably will not have all farmland revalued until the end of next year. Rice says the state has indicated the average value will drop, but some parcels will receive a higher value. Rice says she's not yet able to tell the county board how much tax income it will lose from its farmland when the new system goes into effect.