Elmoro folio, Colorado /
Hills, R. C.(Richard Charles),1848-1923.
Geological Survey (U.S.)
Washington, D.C. : The Survey,
1899.
Relief shown by contours and spot heights.
Cover title.
Plates: [1] Topographic sheet -- [2] Historical geology sheet -- [3] Economic geology sheet -- [4] Structure-section sheet -- [5] Artesian water sheet -- [6] Special illustration sheet.
Location map on cover.
Text and ill. on inside covers.
Geology
Groundwater