It's time for Fact Friday! What is eighteen miles wide, two hundred seventy-seven miles long and one mile deep? The Grand Canyon was formed over millions of years of erosion. The canyon is home to an incredible array of flora and fauna and a place of great beauty and wonder. Can't get there? Check out Grand Canyon by Jason Chin. The art in this informational picture book is astonishing and features impressive gatefolds and plentiful back-matter for would-be tourists, budding geologists and science teachers.