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historicalmarkerproject/markers/HMXNO_shaker-concentrator_San-Jose-CA.html
The shaker-concentrator, also known as a shaker table, was used in gravity beneficiation (the concentration of ore) for sorting fine-grained materials, such as heavy cinnabar, from ordinary rock and dust particles. The beneficiation process was ca…
historicalmarkerproject/markers/HMXNM_mercury-storage-vault_San-Jose-CA.html
After cleaned mercury is collected, it was placed in iron flasks for transportation to market. A flask of mercury weighs about 76 pounds when filled and a flask needs to be strong because of the density of the liquid metal.
Filled containers of…
historicalmarkerproject/markers/HMXNL_hoeing-table-and-cleaning-tank_San-Jose-CA.html
Hoeing tables and cleaning tanks were used to purify mercury as the final step in the process of converting cinnabar to mercury. Mercury collected in the condensers of a furnace or retort was contaminated with soot, water, dust, sublimed sulphur […
historicalmarkerproject/markers/HMXNJ_cornish-pump_San-Jose-CA.html
A significant problem in mining is groundwater removal. Water limited the depth of early miners until the Cornish pump was introduced in the 18th Century. Cornish pumps originated in the tin and copper mining region of Cornwall, England, and evolv…
historicalmarkerproject/markers/HMXNI_hacienda-mining-display_San-Jose-CA.html
Preserved here is equipment used in quicksilver mining. A few examples are from New Almaden, but most are from the Guadalupe Mine and were used in the last fifty years of mining, until the mines closed in the 1970s.
The equipment is organized i…
historicalmarkerproject/markers/HMWGD_the-gates-of-hell_Stanford-CA.html
I have loved these awesome doors since that winter day in 1949 when I first stood below them outside the Rodin Museum in Philadelphia and was terrified at the prospect of writing my dissertation on the Gates of Hell. In one way or another, I have …
historicalmarkerproject/markers/HMVGF_the-granary_Morgan-Hill-CA.html
BackgroundWhat is a Granary?A granary is a storage facility for grains. Granaries have been built from ancient times, with the oldest granaries dating back to 9500BC! Originally, they were carved into the ground or rock, or made of clay. Modern gr…
historicalmarkerproject/markers/HMV29_waiting-for-the-train_Morgan-Hill-CA.html
This bronze sculpture depicts one of Morgan Hill's early founding families, Hiram Morgan Hiss, his wife Diana and their daughter Diane. In 1898, when the first Southern Pacific station was built, many visitors would request the train stop at "Morg…
historicalmarkerproject/markers/HMV28_votaw-building_Morgan-Hill-CA.html
Built in 1906 by Frank L. Merrill. The building is a revival of the Italian Renaissance style which spread over Europe in the 15th and 16th centuries. The building was the original Morgan Hill Bank. The building is known as the Votaw Building name…
historicalmarkerproject/markers/HMV1Z_morgan-hill-united-methodist-church_Morgan-Hill-CA.html
In 1893, seven pioneers who had just arrive in the new township of Morgan Hill built the Methodist Episcopal Church sanctuary on this land, which was donated by the Phillips Land Company. The church constructed with lumber hauled by wagon from San…