Alabama

Michigan

Pennsylvania

New York

Minnesota

None

A world map shows major iron-producing areas (shaded red) in North America. In Canada: eastern Quebec near Labrador, Vancouver Island, and British Columbia. In the United States: Northern New York, eastern Pennsylvania, Alabama, and Minnesota.

Locations of major iron-producing areas in North America

Major Iron-Producing Areas

North America

USGS

Major Iron-Producing Areas in North America

Alaska

Arizona

Utah

Yukon

Northwest Territories

Idaho

Vermont

Washington

Nunavut

Maine

Oregon

New Brunswick

British Columbia

Newfoundland and Labrador

Colorado

Nevada

Québec

Ontario

California

A map illustrates the global distribution of carbonate rock outcrops, indicated by yellow dots across various continents.

Locations of outcrops of carbonate rocks, primarily limestone and dolostone

Carbonate Outcrops

In North America, outcrops are prevalent along the western coast, the southeastern United States, and parts of Mexico. Central America and the Caribbean also have notable concentrations, particularly in Costa Rica and Cuba. In South America, significant outcrops are found in Venezuela, Peru, Bolivia, Brazil, and Paraguay. Europe shows widespread outcrops, especially in France, Spain, Poland, and Ukraine, with additional dots in the United Kingdom and Sweden. Africa has notable outcrops in Morocco, Algeria, Nigeria, Cameroon, Gabon, the Democratic Republic of Congo, Angola, Zambia, Zimbabwe, and South Africa. In Asia, outcrops are concentrated in Turkey, Iran, Pakistan, India, Nepal, Sri Lanka, Myanmar, Vietnam, Cambodia, Malaysia, Indonesia, and the Philippines, with additional dots in China, Mongolia, and Russia. Southeast Asia has numerous outcrops, particularly in Indonesia. In Australia, outcrops are found along the eastern coast and in southern Australia, with additional dots in New Zealand.