Letters mailed in Rapid City, South Dakota would have to take a longer trip under one cost-cutting proposal being considered by the U. S. Postal Service.

The agency is considering closing the city's mail-processing and distribution facility and moving those operations to Casper under the plan, the Casper Star-Tribune reports that a letter mailed in Rapid City, or some other towns in western South Dakota, would have to be sent to Casper for sorting and then sent back across the border for delivery.

The postal service announced last week that the Rapid City facility is one of more than 250 mail processing sites it's considering closing to save money. Tt's struggling because of lost business to the internet and because the bad economy has been holding down the growth of advertising mail.