Q 01/05

In which U.S. state is the Grand Canyon primarily located?

A) Colorado

B) Utah

C) Arizona

D) Nevada

Answer · why

C) Arizona

The Grand Canyon, including most of its national park, is situated within the state of Arizona.

Q 02/05

What major river is responsible for carving the Grand Canyon?

A) Mississippi River

B) Rio Grande

C) Colorado River

D) Columbia River

Answer · why

C) Colorado River

The Colorado River's relentless flow and erosion over millions of years shaped the immense chasm we know today as the Grand Canyon.

Q 03/05

Approximately how long is the Grand Canyon from its eastern to western end?

A) 150 miles (241 km)

B) 400 miles (644 km)

C) 350 miles (563 km)

D) 277 miles (446 km)

Answer · why

D) 277 miles (446 km)

The Grand Canyon is 277 miles (446 km) long, measured along the Colorado River from Lees Ferry to the Grand Wash Cliffs.

Q 04/05

In what year was Grand Canyon officially designated as a National Park?

A) 1872

B) 1903

C) 1919

D) 1935

Answer · why

C) 1919

President Woodrow Wilson signed the act that established Grand Canyon National Park on February 26, 1919, after it had been a national monument.

Q 05/05

What is the approximate maximum depth of the Grand Canyon?

A) Half a mile (800 meters)

B) Over a mile (1,800 meters)

C) Two miles (3,200 meters)

D) Three miles (4,800 meters)

Answer · why

B) Over a mile (1,800 meters)

Over a mile (1,800 meters), about 6,093 feet at the deepest point, with the whole stack of geological layers exposed on the way down.