Paleocurrent data from ripple marks and cross-stratification are related to orientations of shorelines and sandstone-body trends in the lacustrine and fluvial setting of the Green River Formation (Eocene) in the Red Wash field and the adjacent outcrops along Raven Ridge in Utah and Colorado. At 11 localities along Raven Ridge, the northeastern margin of the Uinta basin, 125 paleocurrent directions were measured from cross-stratification and asymmetrical ripple marks in the Douglas Creek and Garden Gulch Members and the lower part of the Parachute Creek Member.

Vertical stratigraphic variation of paleocurrent directions at each locality is small, indicating that the overall current system was stable. A plot of measurements of 68 asymmetric and 84 symmetric ripple marks shows that their distribution is very similar, which is interpreted to be the result of their formation by the same current system. Based on few data, there is an average difference of 5° between paleocurrent directions from cross-stratification and from ripple marks, ripple marks showing less variation than cross-stratification. The dominant paleocurrent directions are toward the north, south, and southeast. Of all observations, 25% range from 331° to 30°, and 51% range from 121° to 210°.

The shorelines in the northeastern Uinta basin area are interpreted to have been generally perpendicular to the dominant paleocurrent directions. Therefore, essentially all of the shorelines had bearings of 31°-120°. An arc of 61°-90° would contain about 40% of the bearings of the shorelines, based on the paleocurrent data. Trends of single sandstone bodies, the total footage of sandstone, sandstone plus siltstone, and net sandstone, and the major facies support the generalizations about the orientations of shorelines and sandstone-body trends.

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