2. What term does the author use for what comprises the third layer of the Grand Canyon?
(a) The Grand Layer.
(b) The Supai Formation.
(c) The Great Formation.
(d) The Canyon Layer.

3. About how long did Fletcher stay at the Grand Canyon Village?
(a) 1 month.
(b) 5 days.
(c) 1 year.
(d) 2 weeks.

4. Who is the "The Man" in The Man Who Walked Through Time?
(a) John Wesley Powell.
(b) Lorenzo Sinyala.
(c) William Wallace Bass.
(d) Colin Fletcher.

5. What was the approximate depth of the Grand Canyon at the time the book was written?
(a) 500 feet.
(b) 1 mile.
(c) 2000 feet.
(d) 5 miles.

6. What does Fletcher say he realized he might be doing when he hiked through the Grand Canyon?
(a) He would come as close to traveling back through time as possible.
(b) He would be following in the footsteps of hundreds of great hikers.
(c) He would be making his last hiking trip.
(d) He would be fulfilling a dream from his early childhood.

7. How many layers are included in the Rim?
(a) 8.
(b) 2.
(c) 5.
(d) 3.

8. What event sparked a desire for Fletcher to study the Grand Canyon and make a journey through it alone?
(a) A visit from and American Indian in a dream.
(b) A television special highlighting the place.
(c) An impromptu side trip made to the Grand Canyon during a cross country journey with a friend.
(d) The death of a close friend.

9. Who does Fletcher credit with making the first trip through the Grand Canyon?
(a) Lewis and Clark.
(b) Lorenzo Sinyala.
(c) Hernando DeSoto.
(d) John Wesley Powell.

10. About what did Fletcher begin to worry in "Chapter 3, Interlude?"
(a) His injured ankle.
(b) The lack of modern technology in the Supai village.
(c) The endangered animals living in the canyon.
(d) Bad weather.

11. How does Fletcher describe the Grand Canyon?
(a) "A gigantic hole in the desert plateau."
(b) "An upside-down mountain wonder."
(c) "A chasm . . . like a gigantic and impossible desert crevasse."
(d) "Huge stacks of multicolored rock."

12. How long did Dr. Harvey Butchart study the Grand Canyon?
(a) 17 years.
(b) He never studied it.
(c) 25 years.
(d) 5 years.

13. What is the current age estimate of the seventh layer of the Grand Canyon?
(a) 750 thousand years.
(b) 1 billion years.
(c) 30 thousand years.
(d) 500 million years.

14. What does the book say geologists believe formed the Grand Canyon?
(a) A large sea that evaporated after a 200 year drought.
(b) The Colorado River.
(c) An earthquake.
(d) A volcanic eruption.

15. What is the current age estimate of the third layer of the Grand Canyon?
(a) 500 thousand years.
(b) 350 million years.
(c) 800 years.
(d) 275 million years.