During the last ice age, glaciers formed high in the Rocky Mountains and carved out the peaks and valleys visible today. Recreating the landscape and life forms of this era of the last great ...

7 billion years ago during the Precambrian Era. 0 billion years old, making them among the oldest rocks found in the United States. 6 billion years ago, massive volumes of magma pushed into these ...

Introduction -- Pioneer geologists of the American West / Dr W. Lyle Dockery -- Physical geology -- Regional geography -- Cities, towns and highways / American Association of Petroleum Geologists and ...

Nestled among the willow-lined banks of the South Platte River, the Buffalo Peaks Ranch in Park County, Colorado has witnessed many chapters of human history. Over the past few centuries, the land ...

The Rocky Mountain chain is a fascinating geologic formation, as it (at least, at first glance) defies some basic geological rules, including that most mountain ranges form subduction zones. A new ...

Here’s what you’ll learn when you read this story: The Rocky Mountain chain is a fascinating geologic formation, as it (at least, at first glance) defies some basic geological rules, including that ...