This abandoned Rock Island line between Winnfield (northern end) and Packton (southern end) was once part of the Rock's mainline to Eunice, LA, to the south. It paralleled the adjacent Louisiana & Arkansas Railroad (a subsidiary of Kansas City Southern), which also visited Winnfield and Packton. Located at Packton was "L&A Junction", where the Rock Island connected with the L&A (formerly Louisiana Midland) and enjoyed trackage rights on the L&A south to Alexandria. When the trackage rights on the L&A were extended northwards to Winnfield, this line was presumably considered unnecessary, and the Rock Island soon abandoned it.
The years of construction and abandonment are not known. However, it appears on railroad maps from both 1924 and 1948; a 1985 topographical map shows the line as abandoned.
The grade and a majority of the rail are still intact.