Lesley] OU [Jan. 2 and Feb 6, 



McKinney's Bank, worked for Pennsylvania Furnace, is much smaller, 

 say 25 X 30 X 10 = 5,000 cubic yards, and exhibits the same aspect. 



Shafts sunk between the two excavations on both sides of the road, 

 leading south from Stormstown to Gatesburg and Pennsylvania Furnace, 

 always struck good ore, dipping to the southeast ; as do the limestone 

 outcrops of the neighborhood. We have here a prism of ore deposit at 

 least 350 X "100 X. 10 = 350,000 cubic yards in size ; probably, after all 

 due allowances, quite that many tons of ore. 



The Curtin Bank, a long, narrow open-cut on a prolongation of this 

 outcrop, beyond the limits of the map, 2^ miles N. E. of the McKinney, 

 and the Lamborne Bank, 1| miles further in the same direction, have 

 yielded cold short ores, similar in appearance to the Pennington. These 

 and other works of less importance show the persistent straightness ,of 

 the outcrop of the ore-carrying strata, parallel with the Bald Eagle 

 Mountain, at the foot of which flows the east or main branch of Half 

 Moon Run, with a limestone ridge* between the Valley of the Run and 

 the ore. The Valley of the Run marks, of course, the line of the Great 

 Bellefonte Fault. 



At McKinney Bank we are three miles from the railway, where it strikes 

 and beghis to descend Half Moon Run. The Lovetown Banks require a rail- 

 way two miles long, descending the west branch of Half Moon, with a 

 grade of 40 feet to the mile, or else a railway across the ridge If miles 

 long, with gradients 90 feet to the mile, as described. The line of the 

 road was originally located to Lovetown, and thence down Half Moon ; 

 but it was considered more desirable to carry it across the Dry Hollow, 

 among the ore-banks to be hereafter mentioned. 



Before returning to these banks and the neighborhood of the railway, 

 I will describe a group of banks lying south of the Lytle and McKinney 

 Banks, at the east edge of the map, and on outcrops somewhat higher 

 in the Lower Silurian Series. 



Dry Hollow Range. 



No. 13. Hannah Purnace Bank No. 2. Two hundred yards east 

 •of the Gatesburg road is a hole 40 X 20 X 10 ^^ 8,000 cubic yards in 

 size, excavated on the broad, flat top of a ridge, as shown in Local Map, 

 fig 25. It was long ago abandoned. The ore seems good and abundant, 

 15 to 20 feet of wash-ore showing in the side walls, and coming close to 

 the surface. All the down-slid stuff may be washed. Massive sandy 

 limestones, 180 yards N. W. of it, dip S. 80° E. > 28 ; 150 yards further 

 N. W., massive white sandrocks dip the same. 



No. 14, Bull Banks, half a mile east of the last, and in line with it, 

 consist of two excavations on the south brow of the ridge ; see A and 

 B, local map, fig. 27. Much sandy ore was formerly taken out before 

 these banks were abandoned, 20 years ago. A=60X50X10^=30,000, and 



* This ridge, by an oversiglit, is not represented on the Map, no surveying having 

 been done north of the McKinney Banks. 



