The summer season of 1903 was spent by the writer in the Uinta Indian reservation, which includes the southern flank of the Uinta Mountain range. Many expeditions were made through the western portion of the area. The notes made at that time furnish the data for the following descriptions of local structural features, as well as the basis of the writer’s presentation of the accompanying discussion.
The geology of the Uinta region is known almost exclusively through the writings of Clarence King,* S. F. Emmons,† and J. W. Powell.‡ In the matter of stratigraphic succession and equivalence in particular there is considerable divergence of opinion, represented by Major Powell on one hand and the Fortieth Parallel geologists on the other.
From the foregoing it will be seen that there are two well marked structural and stratigraphic problems set before the student of the Uinta region: . . .