The Midcontinent Rift is a giant tear that formed in what is now the U.S. Midwest 1.1 billion years ago. Nicknamed North America's "broken heart," it is filled with solidified magma and lava.

This may be one of the best ways to see the Great White North.

ANTH copy purchased with funds from the Lloyd and Charlotte Wineland Library Endowment for Native American and Western Exploration Literature Part 1. The archaeology of North America -- Archaeology of ...

Boulder, CO, USA - An international team of researchers has found the strongest evidence yet that parts of North America and Antarctica were connected 1.1 billion years ago, long before the ...

Mechanism Schematic of North American teleconnection to Asian summer monsoon. North American continent creates a heating center in summer. This then creates atmospheric ripple effects, which ...

Introduction -- North American amphibians -- The North American Continent -- Glaciation -- Climate and amphibian distribution -- Frogs of North America -- Family Ascaphidae -- Family Bufonidae -- ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...