Which vehicles must use Loveland Pass instead of the tunnel?

Trucks carrying hazardous materials

Why do some high passes close in winter?

Heavy snow and avalanche danger

Colorado Mountain Passes Quiz: Highways Over the Rockies

More than a dozen paved roads cross the Rockies above 10,000 feet, and this Colorado mountain passes quiz takes you over the most famous of them. Play an interactive set of 10 questions on Trail Ridge Road, Independence Pass, Loveland Pass, the Eisenhower Tunnel, the Million Dollar Highway, Wolf Creek Pass and the Continental Divide.

Start Colorado Mountain Passes Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Trail Ridge
Which road is the highest continuous paved highway in the US?
Independence
Which pass near Aspen closes every winter?
Divide
What line do many Colorado passes cross?
Tunnel
Which tunnel carries Interstate 70 beneath the Divide?
Loveland
Which vehicles must use Loveland Pass instead of the tunnel?
Million
Which highway over Red Mountain Pass is known for its steep drops and no guardrails?
Song
Which pass inspired a 1975 C. W. McCall song?
Blue Sky
What was Mount Evans renamed in 2023?
Cottonwood
Which pass between Buena Vista and Taylor Park was fully paved in 2019?
Season
Why do some high passes close in winter?

Explanations: answer key for all 10 questions

Q1: Which road is the highest continuous paved highway in the US?
Answer: Trail Ridge Road
It crosses Rocky Mountain National Park and tops out at 12,183 feet.
Q2: Which pass near Aspen closes every winter?
Answer: Independence Pass
Colorado Highway 82 over the pass reaches about 12,095 feet.
Q3: What line do many Colorado passes cross?
Answer: The Continental Divide
Water on one side flows to the Pacific, on the other to the Atlantic.
Q4: Which tunnel carries Interstate 70 beneath the Divide?
Answer: Eisenhower-Johnson Memorial Tunnel
At about 11,158 feet, it is one of the highest vehicle tunnels in the world.
Q5: Which vehicles must use Loveland Pass instead of the tunnel?
Answer: Trucks carrying hazardous materials
Hazmat loads are banned from the tunnel and take US 6 over the pass.
Q6: Which highway over Red Mountain Pass is known for its steep drops and no guardrails?
Answer: The Million Dollar Highway
US 550 links Silverton and Ouray in the San Juan Mountains.
Q7: Which pass inspired a 1975 C. W. McCall song?
Answer: Wolf Creek Pass
The song tells of a runaway truck on the steep descent.
Q8: What was Mount Evans renamed in 2023?
Answer: Mount Blue Sky
Its summit road is the highest paved road in North America.
Q9: Which pass between Buena Vista and Taylor Park was fully paved in 2019?
Answer: Cottonwood Pass
Paving made it easier to cross the Collegiate Peaks.
Q10: Why do some high passes close in winter?
Answer: Heavy snow and avalanche danger
Roads like Trail Ridge and Independence usually open in late spring.

Colorado Mountain Passes Quiz – Highways Over the Rockies

Colorado's mountain passes carry roads across the Rocky Mountains, many of them over the Continental Divide. Trail Ridge Road in Rocky Mountain National Park reaches 12,183 feet, the highest continuous paved highway in the US.

Independence Pass near Aspen and Loveland Pass on US 6 are famous summer drives. Interstate 70 tunnels under the Divide through the Eisenhower-Johnson Memorial Tunnel, while trucks with hazardous loads must climb Loveland Pass.

In the San Juan Mountains, the Million Dollar Highway crosses Red Mountain Pass without guardrails. Wolf Creek Pass inspired a 1975 song, Cottonwood Pass was paved in 2019 and the road up Mount Blue Sky is the highest paved road in North America.

What This Quiz Teaches

Road trippers and geography fans will enjoy these questions.

Which roads are highest
Which passes close in winter
How I-70 crosses the Divide
Which drives are most dramatic
What songs and names they inspired

Did You Know?

Altitude sickness can affect drivers at high passes.
Many passes have pull-offs for photos at the summit.
Snowplows clear Trail Ridge Road each spring.
Monarch Pass has a ski area at the top.
Bighorn sheep are often seen near passes.