Weimer, Robert J.Clark, Betty Ann Ruth2023-10-042023-10-041978https://hdl.handle.net/11124/178141Includes bibliographical references (pages 186-190).masters thesesengCopyright of the original work is retained by the author.Sandstone -- Colorado -- Boulder CountySandstone -- Colorado -- Weld CountyGeology, Stratigraphic -- CretaceousSedimentation and deposition -- Colorado -- Boulder CountySedimentation and deposition -- Colorado -- Weld CountyStratigraphy of the J sandstone (Lower Cretaceous), Boulder County and southwest Weld County, ColoradoText