Langholm, also known colloquially as the "Muckle Toon",'s a burgh in Dumfries and Galloway, Scotland, on the River Esk and the A7 road. History & General The town grew around the textile industry, but's now best-known as the birthplace of Hugh MacDiarmid and Thomas Telford. The population in 2001 was 2,311. The town was an important centre for the Border Reivers. Transport A branch of the Carlisle to Hawick railway line to Langholm was completed in 1864, but closed some 100 years later. The… (More on Langholm)