Discusses how human use of land and increasing population have threatened natural landscapes and describes the establishment of national parks as a means of preserving these resources.

"Come closer and look at these rocks: they're not normal stones at all! They're thousands and thousands of mollusks, fossilized together in the sediment. But how did a million oysters ever land on top of a mountain? Written by a geologist, this inquisitive journey guides readers through the movements of seas, strata, and tectonic plates. The landscapes of the present can be clues to events in the past. Lush, atmospheric illustrations offer fascinating...

A biography of the noted American artist who found much of her artistic inspiration in nature, especially the desert landscape of the Southwest.

Sierra Leone is a West African nation inhabited by people of different ethnic groups and religious beliefs. However, it's generally known as a tolerant nation, and this engaging exploration of its unique history and culture instills in readers a greater appreciation for diversity. Through well-researched text, clear maps, and vibrant photographs, the natural landscapes, architecture, celebrations, and citizens of Sierra Leone are introduced to readers...

"Known as Washington's gift from the sea, the Olympic Peninsula is home to everything from ice-capped mountains and dense rain forests to rushing rivers and rugged Pacific Coast shores. Readers will visit Olympic National Park to tour the peninsula's beautiful landscapes and catch a glimpse of its many native plants and animals. They will also learn how the park came to be, how people are working to preserve its natural beauty today, and more"--