Hutchinson, Robert M.Johnson, Donald H.2022-05-162022-05-161961https://hdl.handle.net/11124/13090Includes bibliographical references.Plates 2, 3, and 4 are included in both the thesis PDF and the supplemental file.doctoral dissertationsengCopyright of the original work is retained by the author.Geology, StratigraphicGeology, Structural -- Colorado -- Douglas CountyGeology, Economic -- Colorado -- Douglas CountyMetamorphic rocks -- Colorado -- Douglas CountyIgneous rocks -- Colorado -- Douglas CountyText