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The Green Tree facility provides and stores, digitally and in microfilm (aperture cards), [4] over 182,000 maps of abandoned mines. This repository contains maps of mine workings from the 1790s to the present day. [5] It serves as a point of reference for mine maps and other information for both surface and underground mines throughout the ...
The Mine Safety and Health Administration (MSHA) (/ ˈ ɛ m ʃ ə /) is a large agency of the United States Department of Labor which administers the provisions of the Federal Mine Safety and Health Act of 1977 (Mine Act) to enforce compliance with mandatory safety and health standards as a means to eliminate fatal accidents, to reduce the frequency and severity of nonfatal accidents, to ...
List of rivers in Arkansas ... Source for all rivers except St. Francis is the "USGS Water-Data Report ... USGS Hydrologic Unit Map – State of Arkansas (1974)
The Mining Enforcement and Safety Administration (MESA) under the U.S. Department of the Interior was the predecessor of the Mine Safety and Health Administration, prior to March 9, 1978. [1] It was formed by the Federal Coal Mine Health and Safety Act of 1969, [2] and co-approved respirators with NIOSH under 30 CFR Part 11. [3]
The Federal Mine Safety and Health Act of 1977 (Public Law 95-164) amended the Coal Mine Safety and Health Act of 1969. It can be found in the United States Code under Title 30, Mineral Lands and Mining, Chapter 22, Mine Safety and Health.
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Following is a list of dams and reservoirs in Arkansas. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ).
Rank Metropolitan Area Population [2] County Population 1 Little Rock-North Little Rock-Conway, AR: 734,622 Faulkner: 122,227 Grant: 18,082 Lonoke: 72,228 Perry