One aspect of Colorado that often shocks visitors is how wild some of the roads around the state can get. From massive drop-offs to never-ending switchbacks, drivers in Colorado must be comfortable with a number of variables. Another tricky factor drivers in the Centennial State encounter can be steep grades. Here's a look at 10 of the steepest paved mountains passes around Colorado.

Editor's Note: This piece only includes passes where the maximum grade could be found.