Mosquito Pass

Where To Go: Mosquito Pass | Stay The Trail

Lake County, Colorado

Just east of Leadville, Mosquito Pass is the highest pass in Colorado open to motorized travel. Although rocky in areas, stock high-clearance vehicles should have no problem during dry conditions. With old mines and mills along the way, as well as scenic views over the alpine environment, this is a great summer trail.

How To Get There

From Leadville: Head east out of town on 7th st from Harrison Ave. Continue approx 0.7 miles where it will turn into Co Rd 3. Continue on Co Rd 3 approx 0.8 miles to trail access.

Detailed Description

No other information

Trail System Maps & GPS Files

Click District name or icon to visit MVUM Page or Download Ranger District MVUM Files Directly.

Download Files Directly:


Trail System Photos

Click thumbnail to view a larger version of each photo.

Start of the Mosquito Pass trail. This part is the easy part.
View of Diamond Lake and Mountain Lake while climbing toward Mosquito Pass.
Mosquito Pass - 13,185 Feet
A group of 4WD enthusiasts and their vehicles at the top of Mosquito Pass.
Close up of the Mosquito Pass marker.
A mine shaft is visible in the distance.
Descending toward the New London Mine on the Mosquito Pass trail.
An old generator or motor shaft located at the site of the New London mine.
Pieces of an old generator or motor located at the site of the New London mine.
New London Mine on the Mosquito Pass trail.
View of the descent on the east side of Mosquito Pass.
An old cabin on the trail on the east side of Mosquito Pass.
The view from the cabin.

Trail System Videos

No videos.

Area Trails

Trail NameTrail WidthLength*

*Trail lengths are not guaranteed to be accurate

Trail System Information


Location is:


Nearest City:



3 - 4


11.5 miles


2-4 hours


10500 to 13185 feet

Best For:




Note that not all of the trails in an area will be open to all vehicle types. Follow the Motor Vehicle Use Maps (MVUM)s and signage for the area and ride only on trails open to and wider than your OHV.


Most routes in this area are open only to licensed, street-legal vehicles. Please refer to the MVUM for designated ATV and dirt bike routes.