LOCALITIES WHERE THE GROUPS CAN BE STUDIED. 45 



BEIDGER GROUP. 



This group can be well studied in the vicinity of Fort Bridger, at 

 Church Buttes, and in the Cameo Mountains. It has an extensive 

 development in this region, i. e., west of the Green River and north of the 

 Uinta Mountains, and is usually well exposed. An outlying patch can be 

 seen between Vermilion Creek and the Snake River, on the north side of 

 the Dry Mountains. It can also be finely studied at Haystack Mountain. 







UPPER GREEN RIVER GROUP. 



The Plant Beds of this group are well exposed to the north of Green 

 River Station, and between that point and Alkali Stage Station in many 

 gulches and canons. They are also well exposed in the cuts of the Union 

 Pacific Railroad between Green River Station and Bryan. Another good 

 exposure can be seen in the escarpments on either side of Henry's Fork, 

 commencing about five miles above its mouth and continuing up the stream 

 for several miles. 



The Tower Sandstone is well shown in the cliffs at Green River 

 Station and in that vicinity, especially up and down the river for several 

 miles. This sandstone is also well exposed on the eastern side of the Green 

 River, below the mouth of Currant Creek. 



LOWER GREEN RIVER GROUP. 



This group is. well exposed along the Green River from Green River 

 Station southward for ten miles where a detailed section has been made 

 and will be given hereafter. It is also well exposed in many of the escarp- 

 ments of the Quien Hornet Mountain. We again find it well exposed in 

 the escarpments a few miles northeast from the head of Vermilion Canon. 

 Fine exposures are seen on the Snake River six miles above the northern 

 foot of Junction Mountain. The elevated ledges known as Pine Bluffs, near 

 the sources of the eastern tributaries of Vermilion Creek, are capped with 

 the limestones and bituminous shales of this group. 



BITTER CREEK GROUP. 



This group is well exposed along Bitter Creek in the vicinity of Bitter 



