Tahawus in Essex County, New York — The American Northeast (Mid-Atlantic)
An Abundance of Ore
Iron Clad Opportunity
McIntyre, McMartin, and Henderson were convinced from the first discovery that the ore at Adirondac was of high quality and would yield a large quantity of iron. This opinion was confirmed by experts, yet the path to success met many roadblocks.
The ores here consisted of varying proportions of magnetite and ilmenite.
(magnetic iron oxide)
The best ores were nearly pure forms of magnetite, with varying percentages of ilmenite intermixed. The ilmenite made smelting more difficult, but the iron produced was of superior hardness.
The problematic ilmenite (titanium), in modern times, became the more valuable. resource. It is used to produce strong, lightweight alloys for aircraft, and as a white pigment in paint. It was mined in the 20th century where Emmon's map shows the Sanford ore vein.
Ebenezer Emmons was the State Geologist and leader of the New York State Geological Survey, which became a model for
"At Adirondac, I trust it has been shown there is no limit to the amount and quantity of raw material; and that this is of such quality, as few, if any locations in this country can boast of affording.”
- Ebenezer Emmons
The cover of the Emmons report, a document that presented in great detail the quantity, variety, properties, and chemical composition of the ores in the vicinity of Adirondac (earlier named McIntyre), as well as the other resources required to process. the ore. The report also contained detailed drawings of the ore veins showing the shape and extent of the veins, and estimates of the amount of ore they contained.
Map Showing The Locations Of Ore Veins
This 1854 map shows the location of all the ore veins discussed in Emmon's report. The veins were close to the surface and the community of Adirondac was built right
Map inset: The party of prospectors, upon arriving here on an exploratory trip from North Elba in 1826, were astounded by an outcropping of rich ore that spanned the Hudson River, which they named the "iron dam." The ledges in the river bed visible today may have been the original "iron dam.” There is evidence that ore was mined from at least two locations in the river.
Erected by Open Space Institute.
Topics. This historical marker is listed in these topic lists: Exploration • Industry & Commerce. A significant historical year for this entry is 1854.
Location. 44° 5.224′ N, 74° 3.363′ W. Marker is in Tahawus, New York, in Essex County. Marker is on Upper Works Road (County Route 25) 9.7 miles north of Blue Ridge Road, on the left when traveling north. Touch for map. Marker is in this post office area: Newcomb NY 12879, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. The Club Era (a few steps from this marker); Abbott/Lockwood (a few steps from this marker); Three Communities (within shouting distance of this marker); MacNaughton Cottage (within shouting distance of this marker); Taming the Wilderness (within shouting distance of this marker); Adirondac (within shouting distance of this marker); Lazy Lodge (within shouting distance of this marker); Tahawus Clubhouse (within shouting distance of this marker). Touch for a list and map of all markers in Tahawus.
Also see . . . Open Space Institute. (Submitted on April 11, 2020, by Michael Herrick of Southbury, Connecticut.)
Credits. This page was last revised on April 11, 2020. It was originally submitted on April 9, 2020, by Steve Stoessel of Niskayuna, New York. This page has been viewed 94 times since then and 21 times this year. Photos: 1, 2. submitted on April 9, 2020, by Steve Stoessel of Niskayuna, New York. • Michael Herrick was the editor who published this page.
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