Hand-drawn Map of the North Branch Mines, Garrett County Maryland, c. 1870I love a hand drawn map, and find this one both exquisitely beautiful in the way it is rendered and quite poetic in its perfect matter of factness. Drawn in black ink (now kind of sepia toned) on an almost vellum like paper (used by architects in the 19th c.), the map depicts the North Branch coal mine in Garrett County, Maryland, which a little research reveals began operations in 1864, supplied the Baltimore and Ohio Railroad, and was the subject of