FUTURE WATER SUPPLY OF THE ADIRONDACK MOUNTAIN REGION. 471 



13. The next stream is the Hudson River, which reaches the level of tide water 

 at Troy. Its several sources may be considered as in Lake Henderson and Catlin 

 Lake, of which the elevations above tide are, for the foi-mer, 1,889 feet, and for the 

 latter about 1,570 feet. Lake Golden, which lies at an elevation of 2,764 feet, is the 

 extreme source of the Hudson River; but as the lake is very small and the stream 

 issuintj therefrom is also small, the larger lakes at lower elevations are preferabh- 

 taken for water power purposes. 



Lidian Lake, an important tributary of Hudson River, may be mentioned. This 

 lake has a catchment area of 146 square miles and the elevation of water surface is 

 1,705 feet above the le\'el of the sea. A substantial masonry dam lias been con- 

 structed at its foot, which raises the water surface 33 feet, impounding thereby, 

 roundly, 5,000,000,000 cubic feet of water, the total length of the enlarged lake 

 being about 15 miles. This reservoir is for the benefit of Chamiilain Canal anil the 

 water power of the Lower Hudson River. 



14. • Schroon River, a tributary' of the Hudson, rises in Elk Lake and flows in a 

 southerly direction into the main Hudson at Thurman. The elevation of its source 

 in Elk Lake is 2,053 ^'^^^ above tide, while the elevation at its mouth is about 600 

 feet. A reservoir has been projected on this stream, developing storage up to 18 

 inches in depth on the tributary catchment area, and giving a total storage of nearly 

 22,000,000,000 cubic feet. Such a reservoir can be shown to have a capacity of 775 

 cubic feet per second for every day in the year. The dam to accomplish this would 

 be located at Tumblehead Falls, a short distance below the outlet of Brant Lake. 

 The area of water surface of the full reservoir woukl be o\'er 26 square miles, and 

 the height of the dam 71 feet. The elevation of the water surface of reservoir is 

 851 feet above tide water.* The catchment area of .Schroon River, at the dam, is 

 502 scpiare miles, and at its mouth, 570 square miles. 



15. Sacandaga River, another tributary of the Hudson, may be mentioned. 

 This stream has the principal source of its West Branch in Piseco Lake, .Sacandaga 

 Lake and Lake Pleasant. It flows first southeasterly to Northampton, and then 

 northeasterly into the Hudson, at Luzerne. The ele\-ation of Lake Pleasant is 

 gi\-en at. 1,706 feet above tide water. This elevation is substantiall)- the same as 

 Sacandaga Lake. Piseco Lake is not given, but is considered to be somewhat 

 higher. The elevation of the mouth of the ri\'er is 550 feet abo\'e tide water. The 

 East Branch of the river heatls in a number of small lakes, at an elevation of about 



* For details in regard to this reservoir, see Report On a Water Svi]i|ily from tlio Adiroiulack 

 Mountains for t lie City of New York. By George \V. Rafter. In An ln<]uiry into tlie Conditions Relating 

 to a Water Supply for the City of New York, made by the Meichani--' Assmiation of New York, in Igoo. 



