Question 1: You’re looking at Grand Canyon National Park in Arizona. The Grand Canyon was carved over millennia by what natural force?
Correct Answer: Water
Fact: Over hundreds of thousands of years, what's now known as the Colorado River carved a massive canyon more than a mile deep. The 1,450-mile Colorado gets its name from the Spanish words for 'colored reddish' due to the water's heavy silt.
Question 2: Which of these hiking trails is the longest at 6,875 miles?
- Oregon Trail
- Great Western Loop
- Appalachian Trail
Correct Answer: Great Western Loop
Fact: New hikers beware: This path perambulates through rugged territory across nine Western states, two deserts, 12 national parks, and 75 wilderness areas. When you finish, take a victory lap on the American Discovery Trail, a mere additional 6,800 miles.
Question 3: Hikers on steeper inclines appreciate having well-developed gastrocnemius and soleus muscles. Where will you find these muscles?
Correct Answer: Calf
Fact: The calf muscle is the human body's shock absorber, handling eight times our body weight every time we land and push off during walking or running. Our calves lift our heels up to 1,500 times per mile.