Great Smoky Mountains National Park, located in North Carolina and Tennessee, is known for the grand amount of plants and animals that thrive there (more than 10,000 species!). Readers will learn about when it officially became a national park, who was involved, the park's climate, and plants and animals that are commonly found there.

Yosemite National Park, located in Northern California, is known to have some of the most stunning views in all of the United States, from its granite cliffs down into the Yosemite Valley. Readers will learn about when it officially became a national park, who was involved, the park's climate, and plants and animals that are commonly found there.

Yellowstone National Park, located in Wyoming, Montana, and Idaho, is best known for its geysers and hot springs, which are fueled by magma beneath the ground. Readers will learn about when it officially became a national park, who was involved, the park's climate, and plants and animals that are commonly found there.

While camping in Zion National Park, Jake Evans and his friends uncover a new set of cryptic clues hidden in his grandfather's scrapbook. Battling unpredictable weather, unforeseen challenges, and an elusive adversary, the three friends are forced to rely on their problem-solving skills, the power of their growing friendship, and the courage to do the right thing.

Jake, Amber, and Wes encounter new dangers and find their friendship tested as they follow the clues Jake's grandfather hid away in the old scrapbook. The stakes are higher, and the history goes deeper as the three kids put their heads together to solve a puzzle that is perhaps hundreds of years in the making.--Publisher description.

Secret Codes - Lost Landmarks - Hidden Clues - Real Locations: ---- Join Jake Evans and his two friends on a thrilling scavenger hunt through some of America's most rugged and beautiful national parks. This collection of books one through three takes readers into secret places in Rocky Mountain, Great Sand Dunes, and Grand Canyon National Parks. The quest is full of twists and turns, survival skills, humor, and a parallel story set in the late 1800's....