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North Bloomfield Mining and Gravel Company. [2] The mine pit and several Gold Rush-era buildings are listed on the National Register of Historic Places as the Malakoff Diggins-North Bloomfield Historic District. [3] The "canyon" is 7,000 feet (2,100 m) long, as much as 3,000 feet (910 m) wide, and nearly 600 feet (180 m) deep in places.
Currently there are about 20,000 Kumeyaay descendants in San Diego County, 10% of whom live on the 18 reservations which range from 6.3 to 122,000 acres (0.025 to 490 km 2). The Stonewall Mine opened in 1870 and started the boomtown of Cuyamaca City. Peak production at the mine occurred between 1886 and 1891 while employing over 200 workers.
In 2005, Creighton mine produced an average of 3,755 tons of ore per day on a 6 days per week schedule. 2007 was a breakthrough in mining extraction and exploration, with the conformation of mineralization at depth, [18] which produced 793,000 tonnes of ore with grades of 1.62% copper and 2.8% nickel.
It offers boating, fishing, picnicking, birdwatching, hiking, wedding and party venues, cabin rentals and camping. A store, restaurant, pub, and tackle shop are onsite, as well as boat rentals. [1] [4] The reservoir is stocked with over 38,000 lbs. of trout annually, and is the only San Diego lake that is able to stock trout all year long.
During the Julian Gold Rush, a quartz gold mine; the Stonewall Mine, was found on the south side of what is now Lake Cuyamaca. First a mining camp called Stonewall (1873–1876), then the mining company town of Stratton (1887–1888), renamed Cuyamaca City (1888–1906), [ 4 ] at its peak had a population of 500 and served the Stonewall Mine.
County Route S21 (CR S21) is a south–north running road serving the coastal communities of northern San Diego County, California, United States, running from San Diego in the south to Oceanside in the north. The route is signed in many places as "Historic Route 101" with the official Historic U.S. 101 shields.
Location of San Diego County in California. This is a list of the National Register of Historic Places listings in San Diego County, California.. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in San Diego County, California, United States.
In 2016, the University of San Diego conducted soil sampling in the vicinity of the mine site. Some locations, including portions of the Miner's Ridge Loop trail revealed high levels of arsenic present. As of January 6, 2017 the San Diego City Attorney recommended closure of the lower sections of the trail pending further study.