Curated OER
Educational Technology Clearinghouse: Maps Etc: Coal , 1899
Coal regions of United States, coded to show amounts of coal mined in tons.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Gold, 1899
Gold mining in the United States, coded to show amounts of mined in ounces.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Iron Ore, 1899
Iron ore regions of United States, coded to show amounts of iron ore mined in tons.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Iron Mining, 1906
Iron ore regions of the United States.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Iron Mining, 1904
Iron ore mining regions of the United States.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Coal Fields, 1898
The Coal Fields in the contiguous 48 states as of 1898.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Iron Regions, 1899
The United States' Iron Regions.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Coal Regions, 1899
The United States' coal-producing regions 1899.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Metal and Mining , 1916
The metal production and mining regions of the United States in 1916.
Curated OER
Educational Technology Clearinghouse: Maps Etc: United States Coal Fields, 1901
A map from 1901 of the United States showing the coal fields and coal bearing districts in the United States.
Curated OER
Etc: Maps Etc: The United States Coal Fields, 1897
A map from 1897 of the United States showing the region of coal deposits and coal production.
Curated OER
Etc: Maps Etc: Petroleum and Natural Gas Fields, 1916
A map from 1916 of the United States showing the petroleum and natural gas fields known at the time. The map is keyed to distinguish the petroleum reserves from the natural gas reserves.
Curated OER
Etc: Maps Etc: Mineral Regions of the United States, 1910
A map from 1910 of the United States showing the regions of mineral resources. The map is keyed to show areas of gas and petroleum resources, gold and silver deposits, and copper deposits.
Curated OER
Etc: Maps Etc: Production of Iron in the United States,
Production of iron in the United States.
Curated OER
Etc: Maps Etc: Production of Coal in the United States, 1918
"Production of coal in the United States in 1918 and outlines [in red] of coal fields.
Curated OER
Etc: Maps Etc: Coal Mining Regions of the United States, 1904
Coal mining regions of the United States.
Curated OER
Etc: Maps Etc: Coal Mining Regions of the United States, 1906
Coal producing regions of the United States.
Curated OER
Etc: Maps Etc: Distribution of Iron Ore in the Northeast, 1916
The distribution of iron ore from the Lake Superior district.
Curated OER
Etc: Maps Etc: Coal and Iron Deposits in the United States, 1910
A map from 1910 of the contiguous United States showing the regions of iron coal deposits. The map is keyed to show deposits of iron ore, lignite coal, bituminous coal, and anthracite coal in the region.
Curated OER
Etc: Maps Etc: Gold and Silver Mining Regions of the United States, 1904
Gold and silver mining regions of the United States.
Curated OER
Etc: Maps Etc: Gold and Silver Mining Regions of the United States, 1906
Gold and silver mining regions of the United States.
Curated OER
Production of Mercury, Arsenic, and Bauxite in the United States, 1918
"Production of mercury, arsenic, and bauxite (aluminum ore) in the United States in 1918 .