Tours of the Grand Canyon have long been amongst our best selling tours for a number of reasons. Some want to visit this park in order to witness the amazing size of this canyon that has been carved into the ground while others visit it as part of a larger package that might include a tour of Las Vegas or some other close destination. Here are some amazing facts that you’ll want to read up on before taking a Grand Canyon tour:

• The Grand Canyon was formed by The Colorado River, which averages about 300 feet in width, 100 feet in depth and flows at about four miles per hour.

• The Grand Canyon is about 277 miles long and can be up to 18 miles wide at points.

• Experts say The Grand Canyon took between 3-6 million years to form and to this day, erosion continues to alter the contour of this massive canyon.

• The Grand Canyon Skywalk is a balcony-like structure that stretches out above the canyon at a height of more than 4,000 feet and gives visitor’s a bird’s-eye view of the canyon.

• More than 75 different species of mammals, 300 species of birds, 50 species of reptiles, 5 species of amphibians and 25 species of fish call The Grand Canyon home.

• While The Grand Canyon is “only” 3-6 million years old, the natural carving of the canyon exposed walls of rock that date back 250 million years. In fact, experts predict that some rocks along the bottom of the canyon date back as far as 2 billion years.