Nanna Hubba Bluff is a bluff

Cliff

In geography and geology, a cliff is a significant vertical, or near vertical, rock exposure. Cliffs are formed as erosion landforms due to the processes of erosion and weathering that produce them. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually...

 above the Tombigbee River

Tombigbee River

The Tombigbee River is a tributary of the Mobile River, approximately 200 mi long, in the U.S. states of Mississippi and Alabama. It is one of two major rivers, along with the Alabama River, that unite to form the short Mobile River before it empties into Mobile Bay on the Gulf of Mexico...

 near Calvert

Calvert, Alabama

Calvert is an unincorporated community and census-designated place in Mobile County, Alabama, United States. As of the 2010 census, its population was 277. It is located in the extreme northeastern corner of the county near the Tombigbee River, along U.S. Route 43...

 in northeastern Mobile County

Mobile County, Alabama

Mobile County[p] is a county of the U.S. state of Alabama. Its name is in honor of a tribe of Indians, the Maubila tribe . As of 2011, its population was 415,704. Its county seat is Mobile, Alabama...

, Alabama

Alabama

Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...

, United States. The historic site is known to have been occupied by Native Americans

Native Americans in the United States

Native Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...

 at least as far back as 1000 BC, but gained its name from the historic-era Nanibas tribe. The Nanibas (‘fish-eaters’) are believed by scholars to have been a Choctaw

Choctaw

The Choctaw are a Native American people originally from the Southeastern United States...

 people. They occupied a village here during the early 18th century, until they moved downstream to the vicinity of Fort Louis de la Mobile

Mobile, Alabama

Mobile is the third most populous city in the Southern US state of Alabama and is the county seat of Mobile County. It is located on the Mobile River and the central Gulf Coast of the United States. The population within the city limits was 195,111 during the 2010 census. It is the largest...

 and were absorbed into the Mobile tribe. Following the relocation of the Nanibas, the bluff came to be settled by early European settlers. During the American Civil War

American Civil War

The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

 the Confederacy

Confederate States of America

The Confederate States of America was a government set up from 1861 to 1865 by 11 Southern slave states of the United States of America that had declared their secession from the U.S...

 had shipyard

Shipyard

Shipyards and dockyards are places which repair and build ships. These can be yachts, military vessels, cruise liners or other cargo or passenger ships. Dockyards are sometimes more associated with maintenance and basing activities than shipyards, which are sometimes associated more with initial...

s at the site. It was added to the National Register of Historic Places

National Register of Historic Places

The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

 on October 1, 1974, due to its historical importance. Nanna Hubba Bluff was acquired by ThyssenKrupp

ThyssenKrupp

ThyssenKrupp AG is a German multinational conglomerate corporation headquartered in Duisburg Essen, Germany. The corporation consists of 670 companies worldwide. While ThyssenKrupp is one of the world's largest steel producers, the company also provides components and systems for the automotive...

 in 2007, with the company building a new US$4.65 billion stainless

Stainless steel

In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass....

 and carbon steel facility on the site.