@article{104151, note = {Relief shown by contours and spot heights.}, author = {Ellis, Margaret S.}, url = {http://library.usi.edu/record/104151}, title = {Geologic map and cross sections of the Carbondale 30ʹ x 60ʹ quadrangle, west-central Colorado /}, publisher = {The Survey,}, recid = {104151}, pages = {1 map :}, address = {Reston, Va. :}, year = {1984}, }