The Grand Canyon, located in northwestern Arizona, is one of the world's most dazzling sites. Carved over millions of years by the Colorado River, the Grand Canyon is 277 miles long, and between four and eighteen miles wide. In some places, the canyon is more than one mile deep. It is one of the world’s most photographed places and has been captured on countless photographs, posters, and post cards. Millions of people visit it each year.

The Grand Canyon was first discovered by explorers searching for the fabled Seven Cities of Cibola in an expedition led by Spanish explorer Francisco Vasquez de Coronado in 1540.

What formed the Grand Canyon?
1. Northwestern Arizona
2. The Colorado River
3. People
4. Francisco Coronado
What sentence tells the reader that people like to see the Grand Canyon?
1. In some places, the canyon is more than one mile deep.
2. Carved over millions of years by the Colorado River, the Grand Canyon is 277 miles long, and between four and eighteen miles wide.
3. Millions of people visit it each year.
4. The Grand Canyon was first discovered by explorers searching for the fabled Seven Cities of Cibola in an expedition led by Spanish explorer Francisco Vasquez de Coronado in 1540.
Which is an opinion?
1. The Grand Canyon is more than a mile deep in places
2. Millions of people visit the Grand Canyon every year
3. It was discovered on the Coronado expedition
4. It is one of the most dazzling sites in the world
Which is not discussed?
1. The size of the Grand Canyon
2. The discovery of the Grand Canyon
3. Places to visit near the Grand Canyon
4. The history of the Grand Canyon