Mother Lode

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Mother Lode,

belt of gold-bearing quartz veins, central Calif., along the western foothills of the Sierra Nevada. The term is sometimes limited to a strip c.70 mi (110 km) long and from 1 to 6 1-2 mi (1.6–10.5 km) wide, running NW from Mariposa. Popularly it is used to mean the gold-bearing area E of the Sacramento and San Joaquin rivers and W of the Sierra Nevada. The discovery of alluvial gold on the South Fork of the American River led to the 1848 gold rush. Mark TwainTwain, Mark,
pseud. of Samuel Langhorne Clemens,
1835–1910, American author, b. Florida, Mo. As humorist, narrator, and social observer, Twain is unsurpassed in American literature.
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 and Bret HarteHarte, Bret
(Francis Brett Harte) , 1836–1902, American writer of short stories and humorous verse, b. Albany, N.Y. At 19 he went to California, where he tried his hand at teaching, clerking, and mining.
..... Click the link for more information.
 helped make the Mother Lode famous.

mother lode

[′məth·ər ‚lōd]
A main unit of mineralized matter that may not have economic value but to which workable veins are related.

Mother Lode

name applied to gold-mining region of California. [Am. Hist.: Hart, 569]
References in periodicals archive ?
The Mother Lode Field Office manages approximately 230,000 acres of public land in all or portions of these 15 central California counties, including acreage that is within the historic Mother Lode region of the Sierra Nevada Range.
Randolph Holder, a director of Mother Lode Bank, joined the boards of directors of the company and Oak Valley Community Bank upon the closing.
Each member of the board of directors of Mother Lode Bank has agreed to vote all of his shares of common stock in favor of the transaction and to recommend that all other shareholders of Mother Lode Bank also vote in favor of the transaction.
This town is in the heart of Amador County, which is known as the "Golden Heart of the Mother Lode.
Employees who had exercised their stock options after borrowing heavily from the company figured they had struck the mother lode and spent accordingly--buying expensive cars and homes.
Researchers hope to mine this mother lode of genetic variation to achieve cottons with higher yields, stronger fibers, improved seed quality, and other traits.
UBS occupies the mother lode of space here, with 15 floors.
Ballistic Products' indispensable catalog is the mother lode for all things relating to shotshell handloading and ballistics.
Although poetry is sprinkled throughout scripture, the mother lode is the 150 poems collected in the Book of Psalms.
The Ballinasillogue pensioner said: "All the gold we found was washed down from the mother lode but nobody knows where it is.
The mother lode was the "voluminous trial records" (x).
As a public relations, advertising and marketing resource, it provides a mother lode of material.