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By AIME AIME

MINERAL production of the United States is valued at over five billion dollars a year at present and the industry employs close to a million workmen, yet such maps as are available that might indicate the geographical distribution of this industry show only the location of coal and oil fields and of other mineral deposits. No recent map is available that shows this distribution in a quantitative way. The purpose of the maps and graphs here presented is twofold: (1) to give the mining engineer a clear conception of the relative value and the pattern of distribution of minerals in the United States; (2) to test the so-called block-pile (or grouped pillar) system of statistical mapping, which makes this presentation possible. (I discussed this method of mapping in an article which appeared in Economic Geology in 1939, Vol. 15, p. 185-188.)

Jan 1, 1941

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Jan 1, 1946

Map

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Jan 1, 1946

Map

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Jan 1, 1952

Map

Jan 1, 1941

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Jan 1, 1943

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Jan 1, 1939

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Jan 1, 1952

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Jan 1, 1940

ALABAMA Alabama City.-Eddy, L. Altoona.-Cain, J. America.-Foreman, J. T. Anniston.-Foster, R. N. Ashland.-Sturdevant, J. C. Bessemer.-Ball, E. M. Calhoun, F. W. Maschmeyer, W. L. McKenzie, W. C., Jr. Birmingham.-Abbott, C. E. Aldrich, T. H. Aldrich, T. H., Jr. Ashton, J. J. Aufderhaar, H. C. Ball, T. L. Biddison, P. M. Blair, C. S. Brown, T. S. Bush, M. W. Clark, G. H. Crawford, G. G. Crockard. F. H.

Jan 1, 1929

NORTH AMERICA ALASKA Anchorage.-Culver, H. W. Geehan, R. W. Strandberg, H. Chicagof.-Russell, J. C. Tracy, Q. S. College.-Dorsh, J. B. Fox, E. F. Joesting, H. R. Smith, M. C. Wilcox, H. G. Douglas.-Cahill. W. E. Fairbanks.-Adams, J. M. Barber, R. J. Beistline, E. H. Crawford, J. D. Doheny, L. C. Earling. R. B. Greves, J. H. Harris. Q. P., Jr. Henton. H. M. Herbert, C. F. Nester, W. B. Hopkins, J. E. CANADA ALBERTA Calgary.-Allen, R. E. deHart, J. B. Dunn, W. Gray, J. G. Johnson. R. V. Link, T. A. Slipper. S. E. Soul, N. Thorne, B. L. Thorne, H. L. Edmonton.-Ball, M. W. Lilge, E. O. Pitcher, N. C. Nordegg.-Shanks, J. Turner Valley.¬MacKenzie, W. D. C.

Jan 1, 1941

ALABAMA Altoona.-Cain, J. America.-Foreman, J. T. Anniston.-Cowie, L. K. Foster, R. N. Ashland.-Sturdevant, J C Bessemer.-Ball, E. M. McKenzie, W. C., Jr Birmingham.-Abbott, C. E. Aldrich, T. H. Aldrich, T. H, Jr. Ashton, J J. Ball, T. L. Blair, C. S. Brown, T S. Bush, M. W.

Jan 1, 1923

ALABAMA Altoona.-Cain, J. America.-Foreman, J. T. Anniston.-Cowie, L. K. Foster, R. N. Rogers, R. F. White, H. E. Ashland.-Sturdevant, J. C. Bessemer. Ball, E. M. McKenzie. W. C., Jr. Morgan, C. Birmingham.-Abbott, C. E. Adler, J. E. Aldrich, T. H. Aldrich, T. H., Jr. Ashton, J. J. Burgin, G. E.

Jan 1, 1923

NORTH AMERICA ALASKA Anchorage.-Strandberg, H. College.-Barber, R. J. Burns, W. T. Henricksen, R. Henton, H. M. Joesting. H. R. Comet.-Albertson, F. E. Douglas.-Cahill, W. E. Carlson, L. Fairbanks.-Andregg. J. N. Coats. R. R.

Jan 1, 1938

NORTH AMERICA. CANADA Canadian Army Overseas. Ball, H. D. Bridges. C. Butterill, H. J. If. Ladner, F. E. Lane, H. C. Alillar, W. A. ALBERTA Calgary.-Chonette, W. C. Clark, L. At. Corbett, C. S. de Hart, J. B. Dingman, C. W. Fath. A. E. Fulton. J. If. Cray, J. G. Johnson. R. V. McCutchin, J. A. *Slipper, S. E. Vin Buckirk H. A.

Jan 1, 1944

ALABAMA Aldrich -Thomas, D A Altoona -Cain, J Anniston -Cowie, L K Walmsley, W N White, H E Ashland -Sturdevant, J C Bankhead -Connaway, M B Bessemer-Ball, E M McKenzie, W C, Jr Mitchell, F R Morgan, C Thompson, N E Birmingham -Abbott, C E Adams, J H

Jan 1, 1923

NORTH AMERICA ALASKA Anchorage.-Strandberg, H. Tuck, R. Coal Creek.-Moore, E. G. Spencer, W. W. College.-Hance, J. H. Henricksen, R. Henton, H. M. Comet.-Albertson, F. E. Cordova.-O'Neill, W. A. Douglas.-Cahill, W. E. Fairbanks.-Crawford, J. D. Earling, R., B. Fowler. D. A.

Jan 1, 1937