Montana sapphires come in a beautiful array of colors found in a few other places in the world. But geologists have no idea where they originated.<br/>

What happens when you discover a dinosaur? Paleontologist Kenneth Lacovara details his unearthing of Dreadnoughtus -- a 77-million-year-old sauropod that was as tall as a two-story house and as heavy as a jumbo jet -- and considers how...

Get ready to go on an adventure across wild rivers, tall mountains, and wide open land! In this video, you’ll learn about the Lewis and Clark Expedition. In 1804, President Thomas Jefferson sent Meriwether Lewis and William Clark to...

Learn about the longest rivers in the United States, and their roles in shaping the nation's landscape, culture, and history.

Dr. Forrester will provide information about the Mississippi River, explain how it carries sediment into the Gulf of Mexico, and talk about how the deposited sediment forms the bow-shaped Mississippi Delta. She will explain parts of the...

This program explores the geography, history, and some important cultural features of the Mountain Region of the United States. The individual states of Colorado, Utah, Wyoming, Idaho and Montana are presented in detail.

Kansas City part 3/7: This video discusses the history of racial segregation in Kansas City, particularly in the 18th and Vine district. It explores the impact of discriminatory housing policies and the effects of integration on the...

This clip introduces the geography, history, and some important cultural features of the Great Plains Region.

The Women of Standing Rock part 2/8: This video highlights the importance of the Dakota Access Pipeline issue, emphasizing that it is not just a concern for native people but for everyone who relies on the Missouri River for water. It...

American explorers and pioneers the first Europeans explored the valleys, rivers and mountains of America. Many set up home there and forced Native Americans out of their original homeland. 18th century explorers such as Captain James...

A soggy 2013 spring, with near record rainfall in some areas, has led to flood warnings in Iowa, Illinois, Missouri, Arkansas and Oklahoma. With the floodwaters come questions as millions brace for the next wave of...

This program explores the geography, history, and some important cultural features of the Mountain Region of the United States. The individual states of Colorado, Utah, Wyoming, Idaho and Montana are presented in detail.

Native American interpreter Sacagawea was the only woman on Lewis and Clark’s expedition into the West. She played a vital role, but was subsequently forgotten.

This program explores the geography, history, and some important cultural features of the Mountain Region of the United States. The individual states of Colorado, Utah, Wyoming, Idaho and Montana are presented in detail.

This program explores the geography, history, and some important cultural features of the Mountain Region of the United States. The individual states of Colorado, Utah, Wyoming, Idaho and Montana are presented in detail.

This program explores the geography, history, and some important cultural features of the Mountain Region of the United States. The individual states of Colorado, Utah, Wyoming, Idaho and Montana are presented in detail.

This program explores the geography, history, and some important cultural features of the Mountain Region of the United States. The individual states of Colorado, Utah, Wyoming, Idaho and Montana are presented in detail.

American explorers and pioneers the first Europeans explored the valleys, rivers and mountains of America. Many set up home there and forced Native Americans out of their original homeland. American Explorers & Pioneers. The Clark and...