The three southern peaks can be dealt with easily. Sierra Blanca appears on Beckwith's "General profile through the Rockies" for Gunnison's expedi- tion in 1853-1854. It is also given in 1869.°° The Wheeler Survey, uses "l:erro Blanco-, wnicn nas been ruiea against by the U. 3. fix. n. --OWilliam Blackmore, An account of the Trenchara and Costilla Estates in San Luis Park. [From: Hart, John Lathrop Jerome: "Fourteen Thousand Feet: a history of the naming and early ascents of the high Colorado peaks." Denver, Colorado Mountain Club, 1925]