Annotation:Learn how geology and physical geography are intertwined and explore the wonders of the Pacific Northwest. Washington, Oregon, Idaho, Alaska, western Montana, and northern California are a unique part of the United States known for its explosive volcanoes and earthquakes.

Annotation:Water is our most vital resource. Yet few understand even the basics of watershed ecology Watersheds: A Practical Handbook for Healthy Water provides a fascinating overview of the fundamentals of ecology from the simple concept of a watershed to the biological intricacies of a wetland ecosystem and its implications on the environment.

Annotation:The Columbia River has transformed the landscape of the Pacific Northwest, cutting canyons, coulees, and gorges as the river flows from the Rocky Mountains of Canada to the Pacific coast of Oregon. On its way through this spectacular landscape, the river is tapped by a series of dams that power and supply water to the entire Northwest region. In fact, the river is the most heavily dammed stretch of water in the world.

Annotation:From pre-colonial times to the post-industrial age, rivers have shaped the course of American history and culture. Take a fascinating historical journey down the greatest rivers in the United States and learn how they have influenced the people and communities that live and work on them.

Annotation:Discusses ways we can get power from water by damming rivers or harnessing tides and ocean waves, and how water power may be used in the future.

Annotation:Observes how a glacial pond and the abundance of plants and animals that draw life from it change over the course of a year.

Annotation:Through 55 color plates and brief essays, Oregon environmental journalist/poet Daniel and landscape photographer Olson capture the precarious ecology and beauty of Oregon's 56 designated wild and scenic rivers--underscoring the importance of local and national waterway conservation efforts.

Annotation:Takes you on a twisting journey down the great rivers of the world, pausing to visit the thriving realm of freshwater ponds. Travel upstream to find civilization's source - then down again to see the key to our very survival.

Annotation:Simple text and full-color photos explain how waterfalls form and why they are an important landform.

Annotation:Water is a necessity of life on earth. Learn ways to protect it while learning water's story.

Annotation:Illustrated guide to every aspect of Earth's most precious resource-its chemical properties, its movement around the planet, and why it is essential for all life.