http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
(Brewster County) Chisos Mountains quadrangle
E.M. Douglas, geographer in charge ; topography by Arthur Stiles, assisted by J.E. Blackburn and S.T. Penick ; triangulation by Arthur Stiles ; surveyed in 1903
Relief indicated by contours and spot heights.
Verso: text "The topographic maps of the United States", and standard symbols used.