Hubbard Tungsten Mine at Long Hill The first mention of minerals at Saganawamps, or Old Mine Park, is found in the February 21, 1757 deed giving Howkins Nichols of Stratford a lease for 200 years of 5 acres (2.0 ha) "at a place commonly called Saganawam for obtaining ye ore or mineral substances.

"[2] Some time around 1818, Ephraim Lane took some samples of rocks he found at Saganawamps to Yale University Professor Benjamin Silliman for identification.

Silliman reported, in his new American Journal of Science, that he had identified tungsten, tellurium, topaz and fluorite.

Shortly after the articles were published, Ephraim Lane was making specimens available to collectors at a price and apparently to protect his supply of minerals, Lane acquired a lease to 4 acres (16,000 m2) in Trumbull later to be known as "Shagamywamps the mine lot" in 1828 from Elijah Hawley.

[4][5] Besides tungsten, the mine was also a source of beryl, opal, topaz, tourmaline and 60 other crystals and minerals in varying quantities.