COLUMBIA, Mo. (AP) -- Columbia area officials say federal flood insurance rate maps based on old data could hurt local property values.

FEMA officials have displayed new preliminary flood insurance maps that Boone County and Columbia officials say were based on maps from 1983. Problems included the exclusion of the town of Huntsdale and annexations to the city of Ashland.

The maps show flood zones ranging from low risk to high risk, with varying rates for flood insurance. Property in designated high-risk areas must have flood insurance when a federally backed mortgage is involved.

The preliminary maps will go through a lengthy appeals and comment process, and it could take up to two years for the maps to become final.

Columbia and Boone County officials are hoping to meet with FEMA staff to discuss the issue.