What does UM stand for?

Underground Mine

This definition appears very rarely and is found in the following Acronym Finder categories:

Military and Government
Science, medicine, engineering, etc.

Other Resources:

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Micrometer (Micron, 1x10^-6 SI meters; Greek Letter Mu (µ), not u) UARS Missions (NASA) Ulkoasiainministeriö/Utrikesministeriet (Ministry for Foreign Affairs of Finland) Ultimate Muscle (video game) Ultimortal (comic strip) Unable to Maintain Unaccompanied Minor Unauthorized Monitoring Uncertainty Modelling Under-Mentioned		Underwater Mechanic Unexplained-Mysteries (website) Unified Messaging Uniform Manifest (HAZMAT) Uniform Methodology (finance) Uninsured Motorist coverage (protects a motorist against damage from an accident with an uninsured motorist) Unión para a Mudanza (Spanish: Union for Change, Guinea-Bissau) Unit Manager Unit Movement Unit of Measure Code

Samples in periodicals archive:

Earl explains that traditional underground mine planning uses a sequential approach.

South Africa : Mining software firm eyeing more business ...

1 underground mine in Virginia received citations for serious violations at 222 percent of the national average, according to MSHA.

Feds issue safety, health warnings to 10 US mines

There has been a preference for open-cast pits over underground mines since the majority of proven reserves were at depths of less than 300 metre.

We are likely to run out of coal reserves by 2040-41

The shuttle car operators are responsible for the running of electric or diesel cars in the underground mines.

A Thriving Business - Heavy Transport

In the Mining Overview, entitled Minerals are still the Bedrock, you erroneously state: "LionOre also has interests in Tati Nickel Mining Company that operates an underground mine at Selkirk, located 40km east of Francistown, and has operated the now closed Phoenix open-pit since 1995.

Botswana Mining: setting the record straight

1853127507 Disposal of hazardous waste in underground mines.

Disposal of Hazardous Waste in Underground Mines

North American Palladium (NAP) reports a 22 per cent quarterly production increase at their Lac des Iles underground mine near Thunder Bay.

Production up

The Manual for Abandoned Underground Mine Inventory and Risk Assessment documents the process.

Avoiding voids: abandoned mines jeopardize the transportation system ...