Pierre Martel's map of the Chamonix valley is reputedly the "first" appearance of Mont Blanc in print. Le Mont Blanc is labeled 1 on the map (top), as well as the central sketch.
Source: William Windham and Peter Martel, An Account of the Glacières or Ice Alps in Savoy, in two letters (London, 1744), plates 2, 3, 4. General Collection, Beinecke Rare Book and Manuscript Library, Yale University, http://brbl-dl.library.yale.edu/vufind/Record/3587445
Chamonix, Mont Blanc, Glaciers