[1] The AL&M runs north from Monroe, Louisiana, on the Canadian Pacific Kansas City's Meridian Speedway, through Bastrop to Crossett, Arkansas, generally paralleling U.S.

[1][2] A branch from Rolfe Junction to Hamburg, Arkansas, was abandoned in 1920, with the grade reused for a county road; in 2006 the AL&M leased a segment of line in Bastrop from the Union Pacific Railroad.

[5] Operations north of Bastrop were suspended in May, and the property was sold in July and conveyed in August to the new Arkansas and Louisiana Missouri Railway.

The Interstate Commerce Commission approved permanent abandonment of the Hamburg branch, now a county road, and resumption of operation to Crossett.

The new AL&M also obtained trackage rights over the Missouri Pacific Railroad from Bastrop to Dollar Junction and Huttig, Arkansas, the two ends of the 1.88-mile (3.03 km) Louisiana and Pine Bluff Railway.