MINERAL RESOURCES OF THE STATE OF NEW YORK 305 



The ore is brought down to the mill near the base of the ridge by 

 an aerial tramway 1600 feet long. At the mill it is broken in a jaw- 

 crusher and then goes to a ball mill for fine grinding, after which 

 it is sent to a classifier and thea passes over Wilfley tables on which 

 the zinc and lead are recovered. 



The Ellenville mine is based on a vein in a cross-fracture of the grit. 

 It has been a prolific source of beautifully crystallized specimens of 

 sulphides and quartz which only partly fill the open spaces in the 

 fracture zone. The vein is reached through a shaft near the base of 

 the mountain with levels that extend into the mountain following 

 the course of the vein, which is south 30° east. The dip is nearly 

 vertical. The average width is perhaps 2 or 3 feet but the openings 

 are occasionalh^ 25 or 30 feet across, as stringers of ore make off 

 into the walls along the bedding planes of the sandstone. There 

 seems to be little ore left in the old stopes. The ore carries consider- 

 able chalcopyrite as well as galena and blende. According to Mather 

 the mine was opened about 1820 and was in operation in 1840 by 

 the North American Coal & Mining Co. The principal output was 

 in the years 1853-57 when the Ulster Co. worked the property. 

 Operations were resumed for a brief time about 1904-5 by the 

 Ellenville Zinc Co. under whom a milling plant was erected that 

 still stands on the property. In 191 7 the Empire State Zinc Co. 

 pttmped out the shaft and did some prospecting. A second and 

 parallel fracture zone occurs a little distance to the north which is now 

 utilized by the Sun Ray Spring Co. as a source of mineral water 

 for table purposes. There is an extensive circulation of water 

 along the cross-fractures in the grit. 



The Guymard mine, just north of Guymard station and close to 

 the Erie Railroad tracks, is based on a cross-vein in the grit which 

 intersects the ridge in the direction S. 80° E., or about right angles 

 to the strike of the beds. The deposit is said to have been discovered 

 in 1862 and was worked actively from 1863 to 1870 by the Guymard 

 Lead and Zinc Co. which shipped the lead ore to Newark for smelting 

 and utilized the zinc in making zinc oxide. The total ore shipments, 

 lead and zinc, are reported to have amounted to nearly 10,000 tons. 

 The mine was closed after 1870, except for a short period in the 

 eighties. In 191 7 Mr K. Farah became interested in the plan of 

 pumping out the workings and reviving mine operations, but after 

 lowering the water down to 165 feet the work was abandoned. 

 Little ore was left behind in the old stopes, and the only possible 

 resource would seem to be on the extension of the vein below the 

 depth obtained in the former operations, which is said to be 350 feet.. 



