THE MINING AND QUARRY INDUSTRY I912 39 



face; and though not so large as some of the other Adirondack 

 mines measured by output, the property is technically in the front 

 rank. The surface equipment has been enlarged during the past 

 year by the erection of a storage bin at the foot of the cable road 

 on which the concentrates are lowered to the railroad for shipment. 



Ausable Forks. Exploration of the magnetite bodies in the vicin- 

 ity of Ausable Forks has been under way recently, with substantial 

 results. The work was first directed to the old mines on Cook 

 Hill at Arnold where the ore zone has been tested by the diamond 

 drill and by surface excavations for a long distance. A very large 

 tonnage of concentrating ore is now known to exist there. In 191 2 

 operations were conducted in the region to the north of Ausable 

 Forks, beyond the Palmer Hill and Jackson Hill mines, an outlying 

 field that hitherto has received little attention. A well-defined zone 

 consisting of lenses or bands of magnetite arranged in series has 

 been found to exist, a parallel occurrence to that on Cook hill. Of 

 geological interest is the development locally of apatite-rich mag- 

 netites that recall the Old Bed ores at Mineville. On the north- 

 eastern end of the zone the lenticular or tabular form is less appar- 

 ent, the bodies showing rather irregular shapes as seen on the 

 surface, and the magnetite is in places a filling or cement to brec- 

 ciated portions of the syenitic country rock. 



Benson Mines. The production by the mines at Benson Mines 

 was limited to experimental runs made for the purpose of testing 

 out the new mill equipment. The plant has been largely rebuilt so 

 as to make it more representative of current practice, and storage 

 capacity provided for 10,000 tons of crude ore in order to insure 

 better conditions of operation during the winter months. The 

 company has also erected a power plant on the Oswegatchie river 

 and will hereafter operate the mines and mill by electricity. 



Southeastern New York. In the Highlands district the Hudson 

 Iron Co. and the Sterling Iron and Railway Co. were the only 

 operative companies and each contributed its normal quota. 



A new enterprise was started during 1912 on the east side of the 

 Hudson, back of Garrison in Putnam county. The Mt Summit 

 Ore Corporation began exploratory work on a property that up to 

 that time had remained practically undeveloped, though reported 

 as belonging once to the Kingston Iron Ore Co. This property 

 lies on the road to Tompkins Corners, high up on the ridge between 

 the Hudson and the small valley occupied by Sprout brook. The 

 ore is magnetite of granular to compact massive character and 



