History of Westchester County, New York — Passage 144
[J. Thomas Scharf (1886)] The operations of the company were conducted under the direction of Joseph Tregaskis. an expe-rienced miner of Cornwall, England. The company had a lease of the ground for forty years. About twenty-five years ago Mr. Kemeys had the perpendicular shaft cleared of the rubbish which had been pitched into it from time to time. He soon be-came discouraged, and abandoned the "copper-mine," the working of which will probably never again be undertaken. There are one or two tunnels to be seen in Spring Valley, about two and one-half miles northeast of the village of Sing Sing, one of which is in a ridge of the same dolomitic limestone as that of the prison quarries, excepting that it is more sandy and crumbling. Tradition tells us that they were made by the same prospecting explorers that opened the shafts near the river, already described. Eaki.y Histoky ok SiNo SiNti. — At the time of the sales of the lauds in this vicinity by the Conunis-sionersof Forfeitures, in 178"), just a century ago, there were but three dwelling-houses in Sing Sim;. We have already seeii that it was, not long before, a mere OSSINING. 325 Indian village. A stone " mansion," probably only one story high, then stood where the Croton Aqueduct meets Main Street, which not only served Moses Ward as a dwelling, but also as a fortress for defense against the Indians. While writing this sketch, I have been informed by Mr.