Calibrating the data logger…
Technical report (1776-2000). Covers United States, Alaska, Hawaii. Topics: mining, mineral extraction, domestic mineral production, coal mining. Agencies: U.S. Bureau of Mines, Medusa Portland Cement Co., U.S. Geological Survey. Cites 9 external works.
Knowledge graph centered on What Mining Means to the United States with 37 nodes and 76 connections. Top connected: Rushes, United States Geological Survey, Congress, nitrogen retention, Bureau of Mines.
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