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Joshua Tree National Park Location: San Berndardino, CALength: 794,000 acresDifficulty: ModerateFeatures: camping, hiking, climbing, birdwatching, geological features About the Joshua

Kenai Fjords National Park Location: Kenai Peninsula Borough, Alaska Length: 4.5 miles Difficulty: Difficult Features: icefield, glaciers, fjords, terrestrial mammals, marine mammals   About the

Lake Clark National Park and Preserve Location: Port Alsworth, AK Length: 40 miles Difficulty: Moderate Features: kayaking, rafting, fishing, hiking and camping, sport hunting,

Mammoth Cave National Park Location: Louisville, Kentucky Location: more than 400 miles Difficulty: Moderate Features: sinkholes, underground rivers, streams and springs, spelunking, hiking,

Location: Mesa Verde, Colorado, United States Features: Guided and self-guided Tours, Hiking, Archaeological sites and artifacts, Camping About Mesa Verde

Location: Washington, United States Features: hiking trails, camping, horseback riding, mountaineering About the North Cascades National Park North Cascades National Park

Location: 3002 Mt Angeles Rd, Port Angeles, Washington 98362, United States Features: backpacking, rafting, wildlife viewing, hiking trials, Hurricane

Location: Arizona, United States Features: Camping, Hiking Trails, Fossils, Camping About the Petrified Forest National Park Petrified Forest National Park is an

Location: Northern California, United States Features: Kayak tour, scenic drive, hiking trails, wildlife viewing About the Redwood National and State