[Robert Bolton, Jr. (1848)] But list the hour sounds to depart, And thy bright shores we leave with pain; Thou ever shalt be near my heart, While life or thought or hope remain; The friends I here have found, shall be Dear to my heart till life forsake; -. And often shall I think of thee, Thou mildly beauteous Croton Lake. " The supplies of the Croton are derived exclusively from the elevated region of the Highlands, in Westchester county and Putnam, being furnished by the pure springs which so remarka-bly characterize the granitic formation of this region. Many of the ponds and lakes from which it is maintained, are, three or four hundred acres in extent, and as large as 1000 acres : all these ponds are surrounded by clear upland shores, which furnish soft and clear water. Half a gallon of water taken from the Croton at Wood^s bridge, yielded by evaporation, 2,333 grains residuum, in the following pro[)ortions : Vegetable matter, 133. Carbonates of lime and magnesia,. 1,200 Muriate of magnesia,... 1,000 grains, a 2,333 Prior to the erection of the dam, shad fish annually ascended the river some miles above the present lake. The fishing is now entirely confined to trout, perch, and other fresh water fish. In 1800 it was proposed to render the Croton river navigable, from its mouth to Pine's bridge.