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Mosquito Pass
Off-Road Trail
Leadville, Colorado
Photo by @dirtrockteam
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Trail Information
Located near Leadville, Colorado, Mosquito Pass is one of the most thrilling and challenging off-road trails in the state. At an elevation of 13,185 feet, it is the fourth highest road in Colorado, notorious for its unpredictable mountain weather and treacherous terrain. Nicknamed “The Highway of Frozen Death,” the pass is typically open from July through September, depending on snowfall.
The route connects the historic mining towns of Leadville and Alma and requires a high-clearance 4WD vehicle, exceptional off-road driving skills, and nerves of steel. The narrow ledges and steep drop-offs demand caution, and the summit is often windy and cold, so packing extra layers is essential. The road can become muddy and slippery in the rain, and snow can fall year-round, making it critical to check the weather before embarking on the journey. The drive usually takes two to three hours, but with no services along the route, travelers should bring a spare tire, plenty of gas, and other necessities.
Mosquito Pass has a rich history, with its most famous traveler being Father John Dyer, a preacher and mail carrier who braved the frozen peaks on wooden skis in the mid-1800s. His daring crossings earned him the nickname “The Snowshoe Itinerant,” and his legacy is honored with a headstone at the summit.
In the late 19th century, Leadville was a bustling silver mining camp and the second-largest city in Colorado. Today, it’s home to the National Mining Museum and hosts the Western Pack Burro Ass-ociation’s burro races, which reach the top of Mosquito Pass during the annual Leadville Boom Days heritage festival.
For those planning to stay in Leadville, accommodations include the Rodeway Inn, Columbine Inn And Suite, and The Historic Delaware Hotel. Camping options are available at San Isabel National Forest Campgrounds and Sugar Loafin’ Campground. Further east, Middlefork RV Park in Fairplay offers additional camping. Leadville also provides a variety of dining options, including Silver Dollar Saloon, High Mountain Pies, and The Golden Burro Cafe. Fuel up at Circle K or Sinclair gas stations on your way into town.
Mosquito Pass is an unforgettable adventure, offering breathtaking views, a glimpse into Colorado’s mining history, and a test of your off-road prowess.
The route connects the historic mining towns of Leadville and Alma and requires a high-clearance 4WD vehicle, exceptional off-road driving skills, and nerves of steel. The narrow ledges and steep drop-offs demand caution, and the summit is often windy and cold, so packing extra layers is essential. The road can become muddy and slippery in the rain, and snow can fall year-round, making it critical to check the weather before embarking on the journey. The drive usually takes two to three hours, but with no services along the route, travelers should bring a spare tire, plenty of gas, and other necessities.
Mosquito Pass has a rich history, with its most famous traveler being Father John Dyer, a preacher and mail carrier who braved the frozen peaks on wooden skis in the mid-1800s. His daring crossings earned him the nickname “The Snowshoe Itinerant,” and his legacy is honored with a headstone at the summit.
In the late 19th century, Leadville was a bustling silver mining camp and the second-largest city in Colorado. Today, it’s home to the National Mining Museum and hosts the Western Pack Burro Ass-ociation’s burro races, which reach the top of Mosquito Pass during the annual Leadville Boom Days heritage festival.
For those planning to stay in Leadville, accommodations include the Rodeway Inn, Columbine Inn And Suite, and The Historic Delaware Hotel. Camping options are available at San Isabel National Forest Campgrounds and Sugar Loafin’ Campground. Further east, Middlefork RV Park in Fairplay offers additional camping. Leadville also provides a variety of dining options, including Silver Dollar Saloon, High Mountain Pies, and The Golden Burro Cafe. Fuel up at Circle K or Sinclair gas stations on your way into town.
Mosquito Pass is an unforgettable adventure, offering breathtaking views, a glimpse into Colorado’s mining history, and a test of your off-road prowess.
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Basic Info
Difficulty
Moderate
Length
6.1 mi
Hightest Elevation
13197 ft
Nearest City
Leadville
Categories
Off-Road
Mountains
Views
Overland