Miner working in the Comstock Lode

The Comstock Lode was the first major U.S. deposit of silver ore, discovered under what is now Virginia City, Nevada on the eastern slope of Mt. Davidson, a peak in the Virginia range. After the discovery was made public in 1859, prospectors rushed to the area and scrambled to stake their claims. Mining camps soon thrived in the vicinity, which became bustling centers of fabulous wealth. Image File history File links Emblem-important. ... Image File history File links Comstock_miner. ... Image File history File links Comstock_miner. ... This article is about the chemical element. ... For other uses, see Ore (disambiguation). ... View of Virginia City, Nevada, from a nearby hillside, 1867-68 Virginia City is a city located in Storey County, Nevada. ...

The excavations were carried to depths of more than 3200 feet (1000 meters), until the inflow of hot water brought operations to a halt. Between 1859 and 1878, it yielded $400 million in silver and gold, equivalent to approximately $500-600 billion in 2005, as a relative share of Gross Domestic Product (GDP). GOLD refers to one of the following: GOLD (IEEE) is an IEEE program designed to garner more student members at the university level (Graduates of the Last Decade). ... This article is about GDP in the context of economics. ...

It is notable not just for the immense fortunes it generated and the large role those fortunes had in the growth of Nevada and San Francisco, but also for the advances in mining technology that it spurred. The mines declined after 1874 and were abandoned in 1898. Primitive and wasteful exploitation of the deposits is often blamed for their rapid decline. This page is a candidate for speedy deletion. ... This article is about mineral extractions. ...

The discovery of silver

The discovery of silver in Nevada (then Western Utah Territory) in 1858 caused considerable excitement in California and throughout the United States. The excitement was the greatest since the discovery of gold in California ten years earlier at Sutter's Mill. According to Dan De Quille, a journalist of the period, "the discovery of silver undoubtedly deserves to rank in merit above the discovery of the gold mines of California, as it gives value to a much greater area of territory and furnishes employment to a much larger number of persons".^[1] This article is about the U.S. State of Nevada. ... This article is about the U.S. state. ... The California Gold Rush (1848–1855) began shortly after January 24, 1848 (when gold was discovered at Sutters Mill in Coloma). ... Sutters Mill in 1850. ... Dan DeQuille (William Wright) Dan DeQuille (1829-1898), also Dan De Quille, was the pen name for William Wright, an American author, newspaperman, and humorist, probably most known for his non-fiction book, History of the Big Bonanza. ...

Gold was discovered in this region in the spring of 1850. It was discovered in Gold Canyon, by a company of Mormon emigrants on their way to the California Gold Rush. After arriving too early to cross the Sierra, they camped on the Carson river in the vicinity of Dayton, Nevada, to wait for the mountain snow to melt. They soon found gold along the gravel river banks by panning, but left when the mountains were passable, as they anticipated taking out more gold on reaching California. Other emigrants followed, camped on the canyon and went to work at mining. However, when the supply of water in the canyon gave out toward the end of summer, they continued across the mountains to California. The camp had no permanent population until the winter and spring of 1852-53, when there were 200 men at work along the gravel banks of the canyon with rockers, Long Toms and sluices. The California Gold Rush (1848–1855) began shortly after January 24, 1848 (when gold was discovered at Sutters Mill in Coloma). ... Dayton is a census-designated place located in Lyon County, Nevada. ... Rocker may refer to: Rocker, a British, 1960s style or retro-motorcyclist [ UK usage mainly but growing internationally ] Rocker (archetype), a person who listens to rock and roll or Rock music [ North American and UK usage ] Surfing : Rocker refers to the curvature on the bottom of a surfboard, skimboard, bodyboard... A variety of tools and methods were used during the Gold rushes of the second half of the 19th century. ... Sluice gates near Henley, on the River Thames A small wooden sluice in Magome, Japan, used to power a waterwheel. ...

The gold from Gold Canyon came from quartz veins, toward the head of the vein, in the vicinity of where Silver City and Gold Hill now stand. As the miners worked their way up the stream, they founded the town of Johntown on a plateau. In 1857, the Johntown miners found gold in Six-Mile Canyon, which is about five miles North of Gold Canyon. Both of these canyons are on what is now known as the Comstock Lode. The early miners never thought of going up to the head of the ravines to prospect the quartz veins, spending their time on the "free" gold in the lower elevation surface deposits of earth and gravel. For other uses, see Quartz (disambiguation). ... Silver City is a town in Lyon County, Nevada, USA, near Carson City. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...

Credit for the discovery of the Comstock Lode is disputed. It is said to have been discovered, in 1857, by Ethan Allen Grosh and Hosea Ballou Grosh, sons of a Pennsylvania minister, trained mineralogists and veterans of the California gold fields^[2]. Hosea injured his foot and died of tetanus in 1857^[3]. In an effort to raise funds, Allen and an associate, Richard Burke, set out on a trek to California with samples and maps of their claim. Henry Tompkins Paige Comstock was left in their stead to care for the Grosch cabin and a locked chest containing silver and gold ore samples and documents of the discovery. Grosch and Burke never made it to California, suffering the fate of severe hardship while crossing the Sierran trails. The two suffered from gangrene and at the hands of a minor-surgeon lost their limbs through amputation, a last ditch effort to save the lives of the pair. Allen Grosch died on December 19, 1857^[3]. Richard Burke lived, but upon his recovery returned to his home in Canada.

When Henry T. P. Comstock learned of the death of the Grosch brothers, he took it upon himself to claim the cabin and the lands as his own. He also examined the contents of the trunk but thought nothing of the documents as he was not an educated man. What he did know is that the gold and the silver ore samples were from the same vein. He continued to seek out diggings of local miners working in the area as he knew the Grosch brothers' find was still unclaimed. Upon learning of a strike on Gold Hill which uncovered some bluish rock (Silver Ore), Comstock immediately filed for an unclaimed area directly adjacent to this area.

The four miners that discovered the Gold Hill outcropping were James Fennimore ("Old Virginny"), John Bishop ("Big French John"), Aleck Henderson and Jack Yount. Their discovery was actually part of the Comstock Lode, but not a main vein. The four men are therefore credited with the rediscovery of the mine previously found by the Grosch brothers.^[3]

Tragic fates of the discoverers

Those who discovered the famous mine were ignorant and not well educated in mineral sciences. The "blue stuff" kept clogging the rockers, and eventually the men grew frustrated and discouraged from their gold mining.

Patrick McLaughlin sold his interest in the Ophir claim for $3,500 which he soon lost. He then worked as a cook at the Green mine in California. He died working at odd jobs.

Emanuel Penrod sold his share of the interest for $8,500 ^[3].

Peter O'Riley held on to his interests collecting dividends, until selling for about $40,000^[3]. He erected a stone hotel on B Street in Virginia City called the Virginia House, and became a dealer of mining stocks. He began a tunnel into the Sierras near Genoa, Nevada, expecting to strike a richer vein than the Comstock. He lost everything, went insane and died in a private asylum in Woodbridge, California. Genoa, Nevada was the first settlement in the Nevada territory in 1850. ... Woodbridge, California is a small town located on the north side of Lodi, California. ...

Comstock traded an old blind horse and a bottle of whiskey for a one-tenth share formerly owned by James Fennimore ("Old Virginny"), but later sold all of his holdings to Judge James Walsh for $11,000 ^[3]. He opened trade good stores in Carson City and Silver City. Having no education and no business experience, he went broke. After losing all his property and possessions in Nevada, Comstock prospected for some years in Idaho and Montana without success. In September 1870, while prospecting in Big Horn country, near Bozeman, Montana, he committed suicide with his revolver. Official language(s) English [1] Capital Boise Largest city Boise Largest metro area Boise metropolitan area Area  Ranked 14th  - Total 83,642 sq mi (216,632 km²)  - Width 305 miles (491 km)  - Length 479 miles (771 km)  - % water 0. ... Official language(s) English Capital Helena Largest city Billings Area  Ranked 4th  - Total 147,165 sq mi (381,156 km²)  - Width 255 miles (410 km)  - Length 630 miles (1,015 km)  - % water 1  - Latitude 44° 21′ N to 49° N  - Longitude 104° 2′ W to 116° 3′ W Population  Ranked... Bozeman is a city in southwestern Montana, USA. It is the county seat of Gallatin County. ...

Early mining and milling

The ore was first extracted through surface diggings, but these were quickly exhausted and miners had to tunnel underground to reach ore bodies. Unlike most silver ore deposits, which occur in long thin veins, those of the Comstock Lode occurred in discrete masses often hundreds of feet thick. The ore was so soft it could be removed by shovel. Although this allowed the ore to be easily excavated, the weakness of the surrounding material resulted in frequent and deadly cave-ins. Shovel with wide blade - especially appropriate for lifting snow or coal A shovel is a tool for lifting and moving loose material such as coal, gravel, snow, soil, or sand. ...

The cave-in problem was solved by the method of square-set timbering invented by Philip Deidesheimer, a German who had been appointed superintendent of the Ophir mine. Previously timber sets consisting of vertical members on either side of the diggings capped by a third horizontal member used to support the excavation. However, the Comstock ore bodies were too large for this method. Instead, as ore was removed it was replaced by timbers set as a cube six feet on a side. Thus, the ore body would be progressively replaced with a timber lattice. Often these voids would be re-filled with waste rock from other diggings after ore removal was complete. By this method of building up squares of framed timbers, an ore vein of any width may be safely worked to any height or depth. Deidesheimers system of heavy timber cubes enabled skilled miners to open three-dimensional cavities of any size underground. ...

Early in the history of Comstock mining, there were heavy flows of water to contend with. This called for pumping machinery and apparatus, and as greater depth was attained, larger pumps were demanded. All the inventive genius of the Pacific Coast was called into play, and this resulted in construction of some of the most powerful and effective steam and hydraulic pumping equipment to be found anywhere in the world. Initially, the water was cold, but the deeper workings cut into parts of the vein where there were heavy flows of hot water. This water was hot enough to cook an egg or scald a man to death almost instantly. Lives were lost by falling into sumps of this water hot from the vein. The hot water called for fans, blowers and various kinds of ventilation apparatus, as miners working in heated drifts had to have a supply of cool air.

Compressed air for running power drills and for driving fans and small hoisting engines was adopted in the Comstock mines. Diamond drills for drilling long distances through solid rock were also in general use, but were discarded for prospecting purposes, being found unreliable. Several new forms of explosives for blasting were also developed. Compressed air is used to refer to: Pneumatics, the use of pressurized gases to do work, as used in the Air car Breathing gas, often used in scuba diving, also to inflate buoyancy devices Compressed air can also be used for cooling using a vortex tube. ...

Great improvements were also made in the hoisting cages used to extract ore and transport the miners to their work. As the depth of the diggings increased, the hemp ropes used to haul ore to the surface became impractical, as their self-weight became a significant fraction of their breaking load. The solution to this problem came from A. S. Hallidie in 1864 when he developed a flat woven wire rope. This wire rope went on to be used in San Francisco's famous cable cars. U.S. Marihuana production permit. ... Coils of rope used for long-line fishing A rope (IPA: ) is a length of fibers, twisted or braided together to improve strength for pulling and connecting. ... Cable Car in San Francisco A San Francisco cable car Winding drums on the London and Blackwall cable-operated railway, 1840. ...

In 1859 the Americans knew nothing about silver mining. In the California placer mines there were a number of Mexicans who had worked silver mines in their own country. Initially, the Comstock miners endeavored to partner with Mexicans, or at least hire a Mexican foreman to take charge of the mine. The Mexicans adopted their methods of arastras, patios and adobe smelting furnaces to process silver ore. These methods proved to be too slow for the Americans and could not process the quantities of ore being extracted. The Americans introduced stamp mills for crushing the ore, and pans to hasten the process of amalgamation. Some of the German miners, who had been educated at the mining academy of Freiberg, were regarded as the best then existing to work with argentiferous ores. They introduced the barrel process of amalgamation and the roasting of ores. While the barrel process was an improvement on the patio, it was found not to be well adapted to the rapid working of the Comstock ores as pan amalgamation. The Comstock eventually developed the Washoe process of using of steam-heated iron pans, which reduced the days required by the patio process to hours. Section of Quincy Mine unit operations diagram showing Allis Steam Stamp Mill A Stamp mill is a mill, a type of machine or device used to break material into smaller pieces, either for further processing or for extraction of metallic ores. ... This article is about mixtures (alloys) of mercury with other elements. ... The Freiberg University of Mining and Technology (German: Technische Universität Bergakademie Freiberg, short TUBAF) is a small German university with about 4000 students in the city of Freiberg, Saxony. ... The patio process was a process used to extract silver from silver sulfide ores. ... The patio process was a process used to extract silver from silver sulfide ores. ... The patio process was a process used to refine silver from silver sulfide ores. ...

In the early days of pan processing of ores, there were tremendous losses in precious metals and quicksilver (mercury). Almost every millman was experimenting with some secret process for the amalgamation of ore. They tried all manner of trash, both mineral and vegetable, including concoctions of cedar bark and sagebrush tea. At that time, untold millions in gold, silver and quicksilver were swept away into the rivers with the tailings. Although many patterns and forms of amalgamating pans were invented and patented, there was much room for improvement. Improvements were made from time to time, resulting in reductions in losses of metals, but none of the apparatus in use on the Comstock was perfect.

The days of "bull teams" and the Virginia & Truckee Railroad

Before railroads were built, all freight and passengers were transported by teams of from 10 to 16 horses or mules. Ore was hauled to the mills by these teams, which also brought to the mines all the wood, lumber and timber required. Teams also hauled over the Sierras all the mining machinery, all supplies required by both mines and mills, and goods and merchandise needed by the stores and businesses. Each team hauled trains of from two to four loaded wagons. When the large reduction works of the Ophir Mining Company were in peak operation, lines of teams from one to three miles in length moved along the wagon roads, and sometimes blocked Virginia City streets for hours.

In 1859, 1860 and 1861, great quantities of goods were transported across the Sierras to and from California on the backs of mules. When the Central Pacific Railroad line was completed, this hauling was from Virginia City to Reno via the Geiger grade wagon road, for transfer to rail for delivery to points east and west. The Gov. ...

Ground was broken on the Virginia and Truckee Railroad on February 19, 1869 and eight months thereafter, the most difficult section from Virginia City to Carson City was completed. Rails were extended North across the Washoe valley, from Carson City to Reno, where it connects with the Central Pacific. Between Virginia City and Carson City, at Mound House, the railroad also connects with the Carson and Colorado Railroad. The Virginia and Truckee Railroad (AAR reporting mark VT) was built to serve the silver mining communities of Nevada. ... [[Media:Italic text]]{| style=float:right; |- | |- | |} is the 50th day of the year in the Gregorian calendar. ... 1869 (MDCCCLXIX) is a common year starting on Friday (link will take you to calendar) of the Gregorian calendar or a common year starting on Sunday of the 12-day-slower Julian calendar. ... The Carson and Colorado Railroad was incorporated on May 10, 1880, and construction on the railroad began on May 31, 1880. ...

The Virginia City and Gold Hill Water Company

When silver was first discovered on the Comstock, the flow of water from natural springs was adequate to supply the needs of the miners and small towns of Virginia City and Gold Hill, Nevada. As population increased wells were dug for domestic needs, and the water within several mine tunnels was added to the available supply. As the mills and hoisting works multiplied, the demand for water for use in steam boilers became so great that it was impossible to supply it without creating a water shortage among the residents, now thousands in number. In this need, the Virginia City and Gold Hill Water Company was formed, being the first non-mining incorporation on the Comstock Lode.

Water from wells and tunnels in the surrounding mountains was soon exhausted. It became imperative to look toward the main range of the Sierra Nevada mountains, where there was an inexhaustible supply. Between the Sierra and the Virginia ranges lay the Washoe Valley, a great trough nearly 2,000 feet in depth. Herman Schussler, a Swiss trained engineer of great repute who had planned water works in San Francisco, was brought to the Comstock to plan and design the new works. Surveys were made in 1872, the first sections of pipe laid June 11, 1873 and the last on July 25 the same year.^{[citation needed]} is the 162nd day of the year (163rd in leap years) in the Gregorian calendar. ... 1873 (MDCCCLXXIII) was a common year starting on Wednesday (see link for calendar). ...

The initial pipe was made of wrought iron, a total length of over 7 miles, with an interior diameter of 12 inches and a capacity of 92,000 gallons per hour. The pipe traversed the Washoe Valley in the form of an inverted siphon, and at the lowest point having a pressure of 1,720 feet of water, or 800 pounds per square inch. The inlet being 465 feet above the outlet, the water is forced through the pipe at tremendous pressure. Water was brought to the inlet in the Sierra Nevada range from sources of supply in two large covered flumes, and at the outlet end of the pipe was delivered in two large flumes a distance of 12 miles to Virginia City. The pipe was constructed of sheets of wrought iron riveted together, each section fastened with three rows of rivets. Lead was used to secure the joints between each pipe section. The first flow of water reached Gold Hill and Virginia City on August 1, 1873 with great fanfare. This accomplishment was the greatest pressurized water system in operation in the world, having superseded the water system at Cherokee Flat also designed by Schussler.^{[citation needed]} This flume diverts water from the White River in Washington to generate electricity A flume is a waterwork with open water table, that leads water from a diversion dam or weir completely aside a natural flow, often an elevated box structure (typically wood) that follows the natural contours of the... is the 213th day of the year (214th in leap years) in the Gregorian calendar. ... 1873 (MDCCCLXXIII) was a common year starting on Wednesday (see link for calendar). ...

The water company laid an additional pipe alongside the first in 1875, and a third pipe in 1877. These pipes of lap welded joints delivered more water, there being less friction of rivet heads upon the water. Additional flumes were also constructed to diversify and improve reliability of supply.

The Sutro Tunnel

While there was a scarcity of water on the surface, there was an excess of water underground in all the mines. Floods in the mines were sudden and miners narrowly escaped being drowned by vast underground reservoirs that were unexpectedly tapped. Intrusion of scalding-hot water into the mines was a large problem, and the expense of water removal increased as depths increased. To overcome these troubles, Adolph Sutro conceived the idea of running a drain tunnel under the Comstock Lode from the lowest possible point. A survey was made by Schussler and work commenced in October 1869. The Sutro Tunnel was completed from the valley near Dayton through nearly four miles of solid rock to meet the Comstock mines approximately 1,650 feet beneath the surface. From the main tunnel, branches were run north and south along the vein a distance of over two miles, connecting to various mines. The tunnel was 16 ft wide and 12 ft high. Drain flumes were sunk in the floor and over these were two tracks for horse carts. It required over eight years to complete construction. The tunnel provided drainage and ventilation for the mines as well as gravity-assisted ore removal. However, by the time the tunnel reached the Comstock area mines, most of the ore above 1,650 feet had already been removed and the lower workings were 1,500 feet deeper still. Although virtually no ore was removed through the tunnel, the drainage it provided greatly decreased the operating costs of the mines served. The ventilation problems were solved at about the same time by the use of pneumatic drills. Adolph Heinrich Joseph Sutro (April 29, 1830 - August 8, 1898) was the 24th mayor and 1st Jewish mayor of San Francisco, California, serving in that office from 1894 until 1896. ... Dayton is a census-designated place located in Lyon County, Nevada. ... The word jackhammer is also used in the name of the type of combat shotgun called the Pancor Jackhammer. ...

Big Bonanzas

Peak production from the Comstock occurred in 1877, with the mines producing over $14,000,000 of gold and $21,000,000 of silver that year. Production decreased rapidly thereafter, and, by 1880, the Comstock was considered to be played out. The deepest depth was struck, in 1884, in the Mexican Winze at 3,300 feet below the surface. Underground mining continued sporadically until 1922, when the last of the pumps was shut off causing the mines to flood. Re-processing of mill tailings continued through the 1920s, and exploration in the area continued through the 1950s.

Comstock's silver mines were criticised for the way that their share prices were manipulated on the San Francisco stock exchanges, and for the way that insiders skimmed the profits to the detriment of the common shareholders. Insiders used rumors or assessments to drive share prices down, buy up the cheap shares, then spread rumors of large new silver finds to increase prices once more so that they could sell their shares at a profit. Mining company managers also issued contracts to themselves for timber, and water. Ore from the mines was commonly processed by ore mills owned by the company insiders, who were accused of keeping part of the silver they extracted for themselves, and refusing to make an accounting.

Nevada is commonly called the "Silver State" because of the silver produced from the Comstock Lode. However, since 1878, Nevada has been a relatively minor silver producer, with most subsequent bonanzas consisting of more gold than silver. This article is about the U.S. State of Nevada. ...

Four Kings

George Hearst, a highly successful California prospector, became head of Hearst, Haggin, Tevis and Co., the largest private mining firm in the United States, owned and operated the Ophir mine, on the Comstock Lode, as well as other gold and silver mining interests in California, Nevada, Utah, South Dakota and Peru. Hearst was a member of the California State Assembly and became a United States Senator from California. George Hearst was the father of the famed newspaperman, William Randolph Hearst. George Hearst George Hearst (September 3, 1820–February 28, 1891) was a wealthy American businessman, United States Senator and father of famed newspaperman William Randolph Hearst. ... Hearst, Haggin, Tevis and Co. ... The California State Assembly chamber California State Assembly Chamber in the State Capitol The California State Assembly is the lower house of the California State Legislature. ... The United States Senate is the upper house of the U.S. Congress, smaller than the United States House of Representatives. ... For other people named William Randolph Hearst, see William Randolph Hearst (disambiguation) William Randolph Hearst I (April 29, 1863 – August 14, 1951) was an American newspaper magnate. ...

William Chapman Ralston, founder of the Bank of California, financed a number of mining operations, repossessed some of those mines as their owners defaulted, and ultimately made enormous profits from the Comstock Lode. William Billy Chapman Ralston (1826-1875) was a San Francisco, California businessman and financier, and was the founder of the Bank of California. ... The Bank of California was founded in San Francisco, California on July 5, 1864 by William Chapman Ralston. ...

William Sharon, a business partner of William Chapman Ralston, was the Nevada agent for the Bank of California, and acquired Ralston's assets when his financial empire collapsed. William Sharon became the second United States Senator from Nevada. United States Senator from Nevada William Sharon (1821-1885) profited from the Comstock Lode. ... The United States Senate is the upper house of the U.S. Congress, smaller than the United States House of Representatives. ...

William M. Stewart, who abandoned mining to become an attorney in Virginia City, Nevada, participated in mining litigation and the development of mining on the Comstock Lode. As Nevada became a State in 1864, Stewart assisted in developing the State constitution and became the first United States Senator from Nevada. William Morris Stewart (August 9, 1827 –April 23, 1909) was an American politician. ... The United States Senate is the upper house of the U.S. Congress, smaller than the United States House of Representatives. ...

Silver baron Alvinza Hayward, known in his lifetime as "California's first millionaire," held a significant interest in the Comstock lode after 1864. There are very few or no other articles that link to this one. ...

See also

• Silver mining in Nevada

Silver mining in Nevada, a state of the United States, began in 1858 with the discovery of the Comstock Lode, the first major silver-mining district in the United States. ...

External links

• Virginia City, Nevada and the Comstock Lode website
• Virginia City, Nevada official site
• Historical drawings and photographs of the Comstock lode

Bibliography

• Bush, Don. "Nevada and the Comstock Lode." 1992. 10 March 2007 <www.vcnevada.com/history.htm>.
• "Comstock Lode." Britannica. Ed. Jacob E. Safra. 15th ed. Vol. 3. London: Encyclopedia Britannica, 1998. 551.
• "Comstock Lode." Encyclopedia Americana. Ed. Wayne Gard. International ed. Vol. 7. Richmond: Grolier Incorporated Inc., 1988. 494.
• "Comstock Lode." Grolier Online Encyclopedia. Ed. Elliott West. Washington , 1997.
• "Comstock Lode." World Book. Ed. Stephan A. Erickson. Vol. 4. Chicago: World Book, Inc., 1988. 926.
• Edward S. Barnard. The Gold Rush in America. New York: The Reader's Diggest Association Inc., 1977.
• Kyle, Stacy. The Gold Rush in America. London: Troll Association Inc., 1998.

References