136 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



miles in length and 15 miles in width, and at a level above 

 the sea (as shown by the barometer) of about 8000 feet. 



The length of time which the party was able to spend in 

 this region of wonders was too limited to determine whether 

 still greater marvels might not exist in the neighborhood, 

 and we presume it will not be long before a thorough explo- 

 ration of the whole region will be made, and all its hidden 

 curiosities brought to light. Helena Herald, Sept. 29, 1871. 



HEAD WATERS OF THE YELLOWSTONE AGAIN. 



In the preceding article we give an account of explorations 

 in the region about the head waters of the Yellowstone in 

 1870, and we have now to record the renewal of this enter- 

 prise, on a much larger scale, by Dr. Hayden, in 1871. At 

 the head of a large party, this eminent geologist took the 

 field early in the summer, and after examining an interme- 

 diate portion of the Rocky Mountain region, started for Yel- 

 lowstone Lake by way of Fort Ellis and Botteler's Ranch. 



After establishing a depot of supplies on the Yellowstone 

 River, about 140 miles below the lake, the party ascended the 

 river, and reached the lake on the 26th of July, where they 

 made a new camp. They then began at once to survey the 

 lake with the most approved apparatus, by the aid of a boat 

 taken along for the purpose, and expected to be able to ascer- 

 tain the exact contour as well as the principal depths. They 

 had already found several places in the lake where the depth 

 reached 300 feet, especially along the line of a certain chan- 

 nel-way, and they confidently expected to find soundings of 

 at least 500 feet. 



They explored one of the islands in the lake, which they 

 called Stevenson's Island, and found it to contain about 1500 

 acres, densely wooded, and with thick and almost impene- 

 trable underbrush, consisting largely of gooseberry and cur- 

 rant bushes, loaded down with ripe fruit. On the threshold 

 only of the wonderful natural phenomena in the way of gey- 

 sers, boiling springs, etc., described by Lieutenant Doane and 

 Governor Langford, they were satisfied that the description 

 fell far short of the reality, which they, indeed, despaired of 

 being able to portray, even with the aid of photographic 

 views and sketches. 



One of these geysers once in 32 hours threw up a column 



