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Bridger also insisted that immediately west of the point at which we made our final effort to penetrate this singular valley, there is a stream of considerable size, which divides and flows down either side of the water-shed, thus discharging its waters into both the Atlantic and Pacific oceans.
Bridger said at the outset that this would be impossible, and that it would be necessary to pass over to the head-waters of the Columbia, and back again to the Yellowstone.
Bridger at once seemed to recognize the locality, saying, "This is the pass." Our own exhaustion, however, as well as that of our horses, was too great for any further attempts to-day, and we therefore returned to camp, determined to make another and final effort to reach the summit to-morrow.
On your next adventure in the BridgerMountains, whether it be hiking or skiing, consider the millions of years of mountain building, volcanism, inland seas and glacial periods these mountains have undergone.
The limestone layer was the sea floor when the BridgerMountain Range began its period of uplift, therefore, the fault shot the some of the sea floor up, forming the BridgerMountains, and some of the sea floor subsided underneath the mountains.
The BridgerMountains were overturned by an anticline, then the layers of the rock were arched upward, and later breaking off or eroding one side of the anticline.