This is the final Census Report on Mines and Quarries of the Thirteenth Census, taken in the year 1910 for the calendar year 1909.
Volume XI discusses geographic distribution; number of enterprises; number of operators; proprietors, officers and employees; salaries and wages; hours of labor; kind, quantity and value of products; cost of supplies and materials; royalties and rent; miscellaneous expenses; power; capital; form of organization; land tenure and contract work as well as enterprises operated by governmental or eleemosynary institutions. A separate chapter reports similar information for individual states. Chapters on selected industries - coal, iron ore, petroleum and natural gas - are followed by general tables.
Census statistics date back to 1790 and reflect the growth and change of the United States. Past census reports contain some terms that today’s readers may consider obsolete and inappropriate. As part of our goal to be open and transparent with the public, we are improving access to all Census Bureau original publications and statistics, which serve as a guide to the nation's history.