Thirty-five years ago today, Big Thunder Mountain Railroad opened at the Disneyland Resort. Since its debut, over 225 million guests have taken a spin on the wildest ride in the wilderness. The runaway mine train was originally inspired by Bryce Canyon National Park in Utah.

Over the years, the attraction has had some explosive changes added in. Being the third mountain in the park, guests from all over have continued to find this attraction a thrill.

Lets take a look back at some of the changes.

Before its refurbishment closure in 2013.

After its closure in 2014.

What is your favorite part about Big Thunder Mountain Railroad?