Warren and Saline River Railroad
| Overview | |
|---|---|
| Headquarters | Warren, Arkansas | 
| Reporting mark | WSR | 
| Locale | Arkansas | 
| Dates of operation | 1920–present | 
| Technical | |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge | 
The Warren and Saline River Railroad (reporting mark WSR) is an 8-mile (13 km) short-line railroad connecting Cloquet, Arkansas to the Arkansas Midland Railroad at Warren. It has always been independent of larger carriers, and was previously owned by the Potlatch Corporation, a lumber company, until January 2010. WSR is currently operated by the Arkansas Midland Railroad and was sold by Pinsly Railroad Company to sold to Genesee & Wyoming Industries in 2014.
WSR traffic generally consists of outbound lumber and other forest products.