This annual tour doesn’t require tickets even though it’s sure to draw incredible crowds.

It’s aspen season in Colorado, and it never disappoints. Radiant hues of gold, red and orange will soon paint forests across the state as leaves begin to change color.

While it’s not hard to find the striking scene, some places are better than others. Here’s a look at six mountain passes where you’re bound to be awed — even if you don’t leave your vehicle.

Boreas Pass: South of Breckenridge, follow the pavement until it turns to dirt. Soon, the road is lined with aspens. It eventually crests near 11,000 feet at the remains of an old railroad.

Cottonwood Pass: From Buena Vista, head west and just follow the yellow brick road. Swaths of golden aspens blanket the Collegiate Peaks, providing panoramic views of fall at its finest.

Cuchara Pass: The Highway of Legends is indeed legendary, particularly this time of year. Leaf peepers can start in the charming town of La Veta or near the New Mexico border in Trinidad.

Guanella Pass: This scenic route out of Georgetown might prove slow going — with plenty of twists and turns — but you won’t want to be in a hurry with the wondrous show that awaits.

Kenosha Pass: If time is of the essence, look no farther than this drive near the Front Range. Take U.S. 285 out of Denver and quickly replace big city bustle with big mountain beauty.

Red Mountain Pass: Yes, we’ll say it. We’re saving the best for last. That’s what happens when you take fall foliage and add the rugged San Juans. See the show from Ouray or Silverton.

NATHAN VAN DYNE