Note 92 — Chapter VIII · DACOSTA AND THE "MILL GROVE" MINE
Reading edition
The following notice, copied from Relf's Gazette, appeared in the New York Herald for Saturday, November 17, 1804:
"The lead mine discovered on Perkiomen creek, in Montgomery county, Pennsylvania, the property of Francis Dacosta, has been lately opened, and attended with great success. The vein proves to be a regular one, and of long continuance. Its course is N.N.E.; its direction is nearly perpendicular, and its thickness from one foot to 15 inches. Two tons of that beautiful ore were raised in a few hours, and one ton more at least was left in the bottom on the pit, which is yet but nine feet deep. From the situation of this mine, its nearness to navigation and market, its very commanding height, its richness in metal, and the large scale it forms on; it is thought by judges to be one of the first discoveries yet made in the U. S.
"From the analysis made of 100 parts, it contains: