The Site is adjacent to the Dolores River and extends into Telescope Mountain and its related mine workings. The St. Louis Tunnel Adit and settling ponds are located on the eastern edge of Dolores County approximately mile north of the town of Rico. The settling ponds area is on the eastern bank of the Dolores River and occupies about 80

Jul 28, 2014 Tunnel passes through a mountain with and entrance at one emd and an exit at the other. An adit goes into a mountain with no separate exit. Rib… side wall of a drift, adit or tunnel

Permit - As it pertains to mining, a document issued by a regulatory agency that gives approval for mining operations to take place. Portal - The structure surrounding the immediate entrance to a mine; the mouth of an adit or tunnel. Portal bus - Track-mounted, self-propelled personnel carrier that holds 8 to 12 people

Construction Engineering – Tunnel and Underground. Program Management/Construction Management. Mining. What distinguishes our team of professionals with experience in the investigation, analysis, and design of mine reclamation projects, including superfund sites, is niche expertise in inactive mines. We’ve evaluated and rehabilitated

Acid mine drainage - Acidic run-off water from mine waste dumps and mill tailings ponds containing sulphide minerals. Also refers to ground water pumped to surface from mines. Adit - An opening driven horizontally into the side of a mountain or hill

DEFINITION OF HARDROCK MINING TERMS Adit - A level, horizontal drift or passage from the surface into a mine. Borehole - A vertical or inclined hole, used for ventilation from one level to another, or to carry waterlines or electrical wires. May be large enough for a man to climb through, but much smaller than a raise

Portal - The structure surrounding the immediate entrance to a mine; the mouth of an adit or tunnel. Portal bus - Track-mounted, self-propelled personnel carrier that holds 8 to 12 people. Post - The vertical member of a timber set. Preparation plant - A place where coal is cleaned, sized, and prepared for market

All 464 mines in Salt Lake County, Utah. Great Western Mines Co. National Tunnel and Mines Co. Utah Delaware Mining Co. Western Mining History is your source for over 116,000 mines in the western states

The St. Louis Tunnel is a silver, lead, zinc, and gold mine located in Dolores county, Colorado at an elevation of 8,845 feet. About the MRDS Data: All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy

May 15, 2008 The adit -- or water-conducting -- level by which the spot was reached commenced at the cliffs, on a level with the seashore, and ran into the interior until it reached the old mine, aboutDeep Down, a Tale of the Cornish Mines. He said: 'It is believed that she was climbing around an adit, which is an entrance to a mine.. Home | Mail Online. GRC geologists

tunnel This is what everybody calls any horizontal mine opening, but in truth it is only a tunnel if it goes in one place and comes out another, i.e. if it is open on both ends. adit This is the first thing that most people would call a tunnel. You could think of it as half a tunnel

tunnel entrance is called a portal; tunnels may also be started from the bottom of a vertical shaft or from the end of a horizontal tunnel driven principally for construction access and called an adit. So-called cut-and-cover tunnels (more correctly called conduits) are built by excavating from the surface, constructing… Read More

Upper workings such as the Carbonate Tunnel and the Palo Alto Adit can only be reached by hiking in. There is a large dump on the property which is a result of the excavation of the Outlet Tunnel and some of the Holy Moses 2 Adit. The dump is measured as 530’ in length, 80’ wide and 100’ deep. Giving a volume of roughly 4,240,000 cubic feet

Arched mine entrance to a tunnel to the workings, also known as an adit, backlit from the inside at night, of an old lead mine in Derbyshire Adit in old abandoned limestone quarry Velka Amerika. Medieval tunnel adit exposed by modern mining in the 1950s

The Copper Tunnel property also contains the Copper Tunnel adit and various adits and workings on the south slope of the mountain that were explored for copper, lead and silver, most recently by Newmont Mining who made a detailed map of the site

Just outside Talbot, in the Tunnel Hill Bushland Reserve, lies an abandoned gold mine tunnel which runs in a straight line under a small hill and has an opening at each end. The Tunnel Hill Mine was supposedly driven in 1861 and was briefly reworked in 1917 when there was some cyaniding carried out. Adit - The adit is currently being worked

The adit tunnel was constructed with large concrete and timber supports during a previous operation in the 1960’s. The vein assayed 3 to 28% copper, a trace to 2.56 oz. per ton of gold, and a trace to 2 oz. of silver per ton. cobalt and chromium were also reported

mining. adit, a horizontal or near-horizontal passage driven from the Earth’s surface into the side of a ridge or mountain for the purpose of working, ventilating, or removing water from a mine. Where either a vertical shaft or an adit can be used to reach a mineral deposit, the generally lower cost of driving an adit, the saving in the cost

Mining, Tunnelling, Drilling, shaft capping company. SWMT LTD is dedicated to providing specialist services to the mining and tunnelling industry; its expertise extends into general rock engineering.The company was formed in 1984. The senior directors have spent their working lives in the mining and construction industry, and maintain a close personal contact with all work

An adit (from Latin aditus, entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level. Adits are also used to explore for mineral veins

Apr 12, 2020 What is a tunnel adit? An adit (from Latin aditus, entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level. Adits are also used to explore for mineral veins. Click to see full answer

Adit What Does Adit Mean? An adit is a horizontal or near-horizontal passageway to a larger underground excavation for the purposes of ventilation, water removal, or auxiliary entrance. The short tunnels are used in both mining and tunneling to access the main shaft at strategic points

As nouns the difference between adit and tunnel is that adit is a horizontal or nearly horizontal passage from the surface into a mine as contrasted to a shaft which is a vertical entry passage an adit may be used for ventilation, haulage, drainage, or other purposes while tunnel is an underground or underwater passage. As a verb tunnel is

The mine operated until the fuel crises of the early 1980's. Primary workings consist of a large tunnel style adit, with underground drifting estimated at over 2000' feet on multiple levels. Secondary workings consist of a smaller prospect, just west of the main portal

The entry from the surface to an underground mine may be through a horizontal or vertical tunnel, known as an adit, shaft or decline. Underground mining is practical when: The ore body is too deep to mine profitably by open pit. The grades or

Aug 08, 2017 The SGX mine is the largest of Silvercorp’s six significant producing underground mining operations. The SGX mine is located 240 km southwest of Zhengzhou, the capital city of Henan Province in central China. The SGX area, which includes a smaller satellite deposit, the HZG mine, is in the western part of the Ying Mining District and is