about many other strange, and to them impossible things which he had 

 seen, among which were a glass mountain, and a river which ran down 

 hill so fast that the water was made boiling hot, they were not disposed 

 to acknowledge the existence of his ' : Two-Ocean Creek." Subsequent 

 events, however, showed that the strange stories of Jim Bridger were not 

 without some elements of truth. 



Two-( >cean Pass was visited by Capt. Jones in 1S73, by Dr. F. V. Hayden 

 in 1 878, and by Mr. Arnold Hague in 1884. The observations made by these 

 various explorers seemed to indicate that Two-Ocean Pass is a nearly level 

 meadow, near the center of which is a marsh which, in times of wet 

 weather, becomes a small lake, and that " a portion of the waters from 

 the surrounding mountains accumulate in the marshy meadows and 

 gradually gravitate from either side into two small streams, one of which 

 flows to the northeast, the other to the southwest.'' (Hayden.) 



From these reports it began to be suspected that trout, ascending Pacific 

 Creek from Snake Paver, might in time of high water, pass through the 

 lake in Two-Ocean Pass and descend Atlantic Creek and the Upper Yel- 

 lowstone to Yellowstone Lake, and thus would the origin of the trout of 

 that lake be explained. Dr. Jordan, who spent some time in the Park in 

 1889, was impressed with the probable correctness of this explanation, 

 but did not visit Two-Ocean Pass. 



In 1891, while carrying on certain investigations in Montana and the 

 Yellowstone Park under the direction of the United States Commissioner 

 of Fish and Fisheries, Colonel Marshall McDonald, I was instructed to 

 visit Two-i >cean Pass and determine definitely the conditions which obtain 

 there. 



On August 7. accompanied by Dr. ( >. P. Jenkins and Mr. Burnside Clap- 

 ham, we started out from Mammoth Hot Springs with a pack-train of ten 

 pack-horses and eight saddle-horses. Our route led us through all the 

 (ieyser Basins of the Park and we reached Two-Ocean Pass August 17, 

 where we remained long enough to make a careful examination. This 

 pass is a high mountain meadow, about 8,200 feet above the sea and 

 situated just south of the Park, in long. 110° 10', lat. 44° 3 / . It is sur- 

 rounded on all sides by rather high mountains except where the narrow 

 valleys of Atlantic and Pacific creeks open out from it. 



Running back among the mountains to the northward are two small 

 canons, down which come two small streams. On the opposite side is 

 another canon, down which comes another small stream. The extreme 



