This paper briefly summarizes recent developments on some of the anticlines of southeastern Utah. Results of detailed studies of the stratigraphy and structure of the Green River Desert during the summer of 1926 are set forth. These studies revealed the presence of a broad intermontane area which was uplifted repeatedly during Mesozoic time, while the surrounding areas apparently remained undisturbed until Cenozoic time. The respective periods at which disturbances occurred in the various parts of this region are considered by the writers of prime importance in the problem of oil accumulation.

This paper contains replies to criticisms received by the writers on their paper entitled "Salt Domes of Permian and Pennsylvanian Age in Southeastern Utah and Their Influence on Oil Accumulation,"(FOOTNOTE 4) which was read before the Western States Convention at Denver, Colorado, in September, 1926.